WSSA WEED SCIENCE SOCIETY OF AMERICAwssa.net/wp-content/uploads/WSSA-2018-Program.pdf · Welcome to the 2018 Weed Science Society of America ... Weed Biology and Ecology ... (F4)

WSSA

2019 Annual Meeting

February 11–14, 2019

Sheraton New Orleans,

New Orleans, LA

WEED SCIENCE SOCIETY

OF AMERICA

Fifty-Eighth Meeting

2018 MEETING PROGRAM

Crystal Gateway

Marriott

Arlington, Virginia

January 29 to February 1, 2018

WSSA Sustaining Members

WEED SCIENCE SOCIETY

OF AMERICA

PRESIDENTIAL BASF Corporation

Bayer Crop Science

Dow AgroSciences

Dupont

Monsanto Agricultural Company

Syngenta Crop Protection

LEADERS Helena Chemical

Valent USA

Winfield Solutions

PATRONS Nufarm Americas, Inc.

United Phosphorus, Inc.

CONTRIBUTORS AMVAC Chemical Corp

FMC Corporation

Greenleaf Technologies

Gylling Data Management, Inc.

ISK Biosciences Corp

Nichino American, Inc.

Nippon Soda Ltd

Pentair-Hypro

ABG Ag Services

Adjuvants Plus, Inc.

Chemorse Ltd.

Clariant Corporation

Conviron

Gandy Corporation

Gowan Company

Heartland Technologies

Lehigh Agri & Bio Services, Inc.

Marrone Bio Innovations, Inc.

Minnesota Valley Testing Lab

SePRO

TKI NovaSource

1

58th Meeting

Weed Science Society of America

Location of Special Committees & Activities ................... 1

Local Arrangements Committee ....................................... 1

The 2018 Program ............................................................ 2

2018 Program Committee ................................................ 4

WSSA Committee Meetings ............................................ 5

Summary of 2018 Program .............................................. 7

Complete Program ......................................................... 11

Meeting Room Maps ...................................................... 90

Author Index .................................................................. 92

WSSA Board of Directors ............................................ 129

Notes ............................................................................ 132

WSSA Sustaining Members................. Inside Back Cover

Location of Special Committees

and Activities

Registration (Including Guests) …. Arlington Ballroom

Foyer

WSSA Board Meeting (Sat/Sun) ............ Pentagon A/B

WSSA Board Meeting (Thurs)...............Pentagon A/B

Local Arrangements Committee

2018 – Arlington, Virginia

Co-Chairs ............................. Phil Banks, Lee Van Wychen

2 3

The WSSA 2018 Program

Welcome to the 2018 Weed Science Society of America

(WSSA) Annual Meeting at the Crystal Gateway Marriott

in Arlington, Virginia. The venue is outstanding and close

to a great deal of historical sites of significance. Pre-

conference events include tours of the National Museum of

Natural History and the United States Botanical Garden.

The General Session and WSSA Awards Ceremony will

begin Monday, Jan. 29th at 4:00 PM in Arlington Salon

I, II, and III. Our General Session will begin with a

welcome and opening remarks from the United States

Department of Agriculture, Agricultural Research

Service (USDA-ARS) Administrator, Dr. Chavonda

Jacobs-Young. We hope to also have another special

guest address our group from the Department of

Agriculture, Agriculture Secretary, Sonny Perdue, but

we will not be certain until very close to the meeting

time. Dr. Janis McFarland will also be providing a

presidential address to the membership after an exciting

and eventful year as the WSSA President.

The Awards Ceremony will include presentations of the

WSSA Fellow and Annual awards. Be sure to attend

this session to help recognize all the awardees.

Following the Awards Ceremony, WSSA will host an

awards reception beginning around 6:00 p.m. All

registered attendees are welcome and encouraged to

attend. Please be sure spouses and friends that

accompany you have registered so that they may attend

this fun event.

We are again conducting an MS and PhD poster contest

and MS and PhD oral presentation contests. All of the

student contests will be conducted on Tuesday.

Beginning on Tuesday, we are going to have six

symposia related to important and impactful subjects

that are needing attention in Weed Science. These

include: 1) Grade Report for New Dicamba Technology

in 2017, 2) Herbicide Metabolism in Crops and Weeds:

A Revisit, Current Understanding, and New Insights, 3)

Learning by Listening: Herbicide Resistance Listening

Sessions, 4) Pesticide Registration in the U.S. and How

the WSSA Can Inform the Process, 5) Fostering

Sustainable Programs to Improve Pesticide Applications

and Promote Resistance Management, and 6) The State

of the Weed Control Industry in 2018. We will also

have a Teaching Workshop again this year on Tuesday

afternoon.

The WSSA Business meeting and the student contest

awards will be held from 5:15 – 6:45 p.m. on Wednesday

afternoon. We hope that all members will attend to

participate in the decision-making process on societal

issues and board activities going into 2018.

Special thanks to our local arrangement co-chairs, Dr.

Phil Banks and Dr. Lee Van Wychen. Both have been

great to work with as we finalized plans for this meeting.

I would also like to thank Dr. Marty Schraer and Dr.

Darrin Dodds for their help in organizing the student

contests. Thanks also to Dr. Janis McFarland for her

help and guidance in preparing the program. We had a

tremendous group of loyal and committed folks who

provided great ideas on symposia this year as well as

section chairs who have provided a great deal of help

in organizing sections. Thanks to all of you. Finally, I

would like to thank my co-program chair, Dr. Larry

Steckel, and our meeting manager and executive

secretary, Eric Gustafson, for their planning and work

to ensure a successful meeting.

We are excited about the great participation and the many

opportunities to exchange scientific information on weed

science research, education and extension. We hope

everyone has a productive and rewarding meeting.

Scott Senseman

Program Chair and President-Elect

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2018 Program Committee

General Program Chair ........................... Scott Senseman

Vice Chair ..................................................... Larry Steckel

Agronomic Crops...............................................Ryan Lins

Horticultural Crops ................................... Jayesh Samtani

Turf and Ornamentals ........................................ Jeff Derr

Pastures, Rangelands, Forests,

& Rights of Way .........................................David Russell

Wildland and Aquatic Invasives .................Stephen Enloe

Regulatory Aspects ................................... Cherilyn Moore

Teaching and Extension ............................... Sandeep Rana

Formulation, Adjuvant, & Application Technology...........

................................................................Connor Ferguson

Weed Biology and Ecology..............................Dan Tekiela

Biocontrol of Weeds......................................Doug Boyette

Physiology........................................Christopher Van Horn

Soil and Environmental Aspects ................ Travis Gannon

Integrated Weed Management.................... Daniela Ribiero

Sustaining Member Exhibits Session..................Greg Dahl

Poster Sessions.........................................Martin Laforest

Student Contest ........................................... Marty Schraer

Program Booklet and Abstracts

All those registering for the annual meeting will receive

a program booklet. All registrants will receive programs

at the meeting registration desk. To find the time and

location of specific papers, search by the author in the

author index in the back of the program.

Please also download the meeting app for the most up to

date schedules and information.

WSSA Committee Meetings

SATURDAY, January 27

7:00 a.m. – 5:00 p.m.

WSSA Board of Directors........................ Pentagon A/B

SUNDAY, January 28

7:00 a.m. – Noon

WSSA Board of Directors..........................Pentagon A/B

8:00 a.m. – 5:00 p.m.

Herbicide Resistance Action Committee (HRAC)

............................................................Fairfax Boardroom

1:00 p.m. – 6:00 p.m.

USDA-ARS Area Wide Meeting ….……. Mount Vernon

MONDAY, January 29

7:00 a.m. – 8:00 a.m.

WSSA Board and Committee Chairs Breakfast

......................................................................Rosslyn, I&II

8:00 a.m. – 9:00 a.m.

Weed Science Editorial Board (P2) ........................... Lee

8:00 a.m. – 9:00 a.m.

Herbicides for Minor Use (E10) ………………Jackson

8:00 – 10:00 a.m.

Science Policy Committee (E2) ........................ Jefferson

8:00 a.m. – 9:00 a.m.

Research and Competitive Grants (E6) …....... Madison

9:00 a.m. – 10:00 a.m.

Endowment Fund Committee (F3) ......................Jackson

9:00 a.m. – 10:00 a.m.

Weed Technology Editorial Board (P3) ...................... Lee

9:00 a.m. – 10:00 a.m.

Sustaining Member Committee (F4) .................. Madison

9:00 a.m. – 10:00 a.m.

Standardized Plant Names (P22b) ....................Rosslyn II

10:00 a.m. – 11:00 a.m.

Professional Development (F4) ..........................Jackson

10:00 a.m. – 11:00 a.m.

Constitution & Operating Procedures (W10)

.......................................................................... Rosslyn II

10:00 a.m. – 11:00 a.m.

Biological Control of Weeds (W16) ................. Rosslyn

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10:00 a.m. – 11:00 a.m.

Environmental Aspects (E8) ............................. Madison

10:00 a.m. – 12:00 noon

Herbicide Resistance Education (E12b) .......... Jefferson

11:00 p.m. – 12:00 noon

Weed Loss Committee (E11) .............................Rosslyn II

11:00 p.m. – 12:00 noon

Formulation, Adjuvant, and Application Technology

Committee (W15) ..................................................Jackson

11:00 a.m. – 12:00 noon

Publications Board (P1) .............................................. Lee

11:00 p.m. – 12:00 p.m.

Federal Noxious and Invasive Weeds Committee (E11)

...........................................................................Rosslyn I

1:00 p.m. – 2:00 pm

Herbicide Resistant Plants (E12) ...................... Jefferson

1:00 p.m. – 2:00 pm

Website Committee (E14) ......................................... Lee

1:00 p.m. – 2:00 pm

Extension Committee (E12) ........................... Rosslyn II

1:00 p.m. – 4:00 p. m.

IWSS Board Meeting………………………… Madison

2:00 p.m. – 3:00 p.m.

IPSM Editorial Board (P2) ........................................... Lee

TUESDAY, January 30

7:00 a.m. – 9:00 a.m.

Public Awareness (E13) .........................................Jefferson

5:00 p.m. – 6:00 p.m.

Herbicide Off-Target Movement ....................................Lee

WEDNESDAY, January 31

6:30 a.m. – 8:00 a.m.

President’s Breakfast with Regional Presidents.................

...............................................................................Jefferson

7:00 a.m. – 9:00 a.m.

USDA-ARS Meeting ........................................Pentagon A

7:00 a.m. – 9:00 a.m.

Finance Committee (F2) ...................................... Madison

THURSDAY, February 1

6:30 a.m. – 8:00 a.m.

Women’s Breakfast........................................Rosslyn I&II

2:00pm – 5:30 p.m.

Board of Directors.........................................Pentagon A/B

WSSA Committee meetings are open to all WSSA

members. However, some non-WSSA committee meetings

(e.g., Herbicide Resistance Action Committee) are open

only to invited participants. If in doubt, check at the

beginning of the meeting with the Committee Chair.

SUMMARY OF 2018 PROGRAM

SATURDAY MORNING, January 27

7:00 a.m. – 5:00 p.m.

WSSA Board of Directors.......................... Pentagon A/B

SUNDAY MORNING, January 28

7:00 a.m. – 12:00 noon

WSSA Board of Directors...........................Pentagon A/B

MONDAY MORNING, January 29

7:00 a.m. – 8:00 a.m.

WSSA Board & Committee Chairs Breakfast

....................................................................Rosslyn, I & II

9:00 a.m. – 12:00 noon

Registration .................................Arlington Ballroom Foyer

10:00 a.m. – 12:00 noon

Tour of the Botany Department of the National Museum

of Natural History.............................................Hotel Lobby

MONDAY AFTERNOON, January 29

12:00 noon – 3:30 p.m.

Registration .................................Arlington Ballroom Foyer

1:00 p.m. – 3:00

Tour of the United States Botanic

Gardens.............................................................Hotel Lobby

4:00 p.m. – 6:00 p.m.

General Session and WSSA Awards Presentations

…………….........Arlington Ballroom Salon I, II, and III

6:00 p.m. – 8:00 p.m.

Welcome and Awardee’s Reception (open to all attendees

and registered guests) ...............Arlington Ballroom/ Foyer

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TUESDAY, January 30

6:30 a.m. – 7:45 a.m.

Student Contest Judges Meeting & Breakfast

....................................................................Pentagon A/B

7:00 a.m. – 5:00 p.m.

Registration ...............................Arlington Ballroom Foyer

7:45 a.m. – 6:00 p.m.

Contest Judges Work Room .................................Madison

8:00 a.m. – 10:00 a.m.

Poster Session .....................Arlington Ballroom Salon IV

(Authors of even numbered posters will present)

8:00 a.m. – 10:00 a.m.

Poster Contest Presentations

(All Authors Present) ......... Arlington Ballroom Salon IV

8:00 a.m. – 5:00 p.m.

Sustaining Member Exhibits

……………………………Arlington Ballroom Salon IV

10:00 a.m. – 3:45 p.m.

WSSA Student M.S. Oral Contest Session I

………………………………. Arlington Ballroom Salon K

10:00 a.m. – 2:15 p.m.

WSSA Student M.S. Oral Contest Session II

………………………………. Arlington Ballroom Salon J

10:00 a.m. – 3:30 p.m.

WSSA Student Ph.D. Oral Contest Session I

………………………………. Arlington Ballroom Salon V

10:00 a.m. – 3:15 p.m.

WSSA Student Ph.D. Oral Contest Session II

…………………….…….…. Arlington Ballroom Salon VI

10:00 a.m. – 5:00 p.m.

Posters on display without authors

........................................... Arlington Ballroom Salon IV

10:00 a.m. – 5:00 p.m.

Agronomic Crops................ Arlington Ballroom Salon I

1:00 p.m. – 2:15 p.m.

Pastures, Rangelands, Forests, and Rights of Way

....................................................................Grand Salon K

1:00 p.m. – 2:30 p.m.

Teaching and Extension ……......................Grand Salon J

1:00 p.m. – 2:15 p.m.

Symposium: Herbicide Metabolism in Crops and

Weeds: A Revisit, Current Understanding, and New

Insights......................................................Grand Salon H

3:00 p.m. – 5:00 p.m.

Turf and Ornamental Crops........................Grand Salon K

3:00 p.m. – 5:00 p.m.

Workshop: Teaching Undergraduate Weed Science—

Strategies to Improve Learning

....................................................................Grand Salon J

WEDNESDAY, January 31

7:00 a.m. – 8:00 a.m.

WSSA & Regional Presidents Breakfast ….…. Jefferson

7:00 a.m. – 9:00 a.m.

USDA-ARS Meeting ...................................................Lee

7:30 a.m. – 3:00 p.m.

Registration ............................... Arlington Ballroom Foyer

8:00 a.m. – 10:00 a.m.

Poster Session ...................... Arlington Ballroom Salon IV

(Authors of odd-numbered posters will present)

8:00 a.m. – 5:00 p.m.

Sustaining Members Exhibits

……………………………. Arlington Ballroom Salon IV

10:00 a.m. – 5:00 p.m.


............................................. Arlington Ballroom Salon IV

10:00 a.m. – 2:00 p.m.

Agronomic Crops................. Arlington Ballroom Salon I

10:00 a.m. – 4:45 p.m.

Weed Biology & Ecology .......................... Grand Salon K

10:00 a.m. – 12:00 p.m.

Integrated Weed Management..................... Grand Salon J

10:00 a.m. – 2:00 p.m.

Symposium: Pesticide Registration in the US and How

the WSSA Can Inform the Process.......... Grand Salon H

10:00 a.m. - 12:00pm

Graduate Student Workshop: Which Road to Take:

An Extension, Education, Research and Industry

Perspective................................................................TBD

12:00 noon – 1:00 p.m.

Graduate Student Luncheon......................................TBD

1:00 p.m. – 5:00 p.m.

Symposium: Fostering Sustainable Program to

Improve Pesticide Applications and Promote

Resistance Management

.................................... Arlington Ballroom Salon V & VI

1:55 p.m. – 5:00 p.m.

Symposium: Grade Report for New Dicamba

Technology in 2017.... Arlington Ballroom Salon I & II

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5:15 p.m. – 6:45 p.m.

WSSA Business Meeting & Student Contest Awards

..................................... Arlington Ballroom Salon I & II

THURSDAY, February 1

6:30 a.m. – 8:00 a.m.

Women’s Breakfast........................................Rosslyn I&II

8:00 a.m. – 10:00 a.m.

Registration ............................ Arlington Ballroom Foyer

8:00 a.m. – 11:00 a.m.


………………….............. Arlington Ballroom Salon IV

8:00 a.m. – 11:00 a.m.

Sustaining Members Exhibits

…………………………. Arlington Ballroom Salon IV

8:00 a.m. – 12:00 noon

Symposium: Learning by Listening: Herbicide

Resistance Listening Sessions

........................................Arlington Ballroom Salon I & II

8:00 a.m. – 9:45 a.m.

Regulatory Aspects ..................................... Grand Salon J

8:00 a.m. – 1:45 p.m.

Horticultural Crops ..................................Grand Salon H

8:00 a.m. – 2:15 p.m.

Physiology ..........................................Arlington Salon III

8:00 a.m. – 9:45 a.m.

Formulation, Adjuvant and Application Technology ....

.................................................................. Grand Salon K

9:00 a.m. – 12:00 noon

Symposium: The State of the Weed Control Industry

in 2018 .....................Arlington Ballroom Salon V & VI

10:00 a.m. – 12:00 p.m.

Soil and Environmental Aspects………. Grand Salon K

1:30 pm – 5:30 p.m.

.…………………………Remove Posters and Exhibits

2:00 p.m. – 5:30 p.m.

WSSA Board of Directors………………. Pentagon A/B

PROGRAM

MONDAY AFTERNOON JANUARY 29

General Session

*SPEAKER

LOCATION: Arlington Salon I, II, & III

TIME: 4:00 PM - 6:00 PM

CHAIR: Scott Senseman

University of Tennessee

Knoxville, TN

MODERATOR: Scott Senseman


Knoxville, TN

4:00 Introductions and Announcements. S.

Senseman*; University of Tennessee, Knoxville,

TN

4:05 Keynote: United States Department of

Agriculture - Agricultural Research Service:

The next 10 years. C. Jacobs-Young*; United

States Department of Agriculture, Washington,

DC

4:25 Keynote: The Status of Agriculture in the

United States 2017. S. Perdue*; United States

Department of Agriculture, Washington, DC

4:45 Presidential Address. J. McFarland*; Syngenta

Crop Protection, Greensboro, NC

5:00 Presentation of Awards. D. Lingenfelter*; Penn

State, University Park, PA

5:40 Presentation of Fellow and Honorary Member

Awards. K. Reddy*; USDA-ARS Crop

Production Systems Res Unit, Stoneville, MS

6:00 –

8:00

WSSA Awardee Reception and Member

Social. Arlington Ballroom/ Foyer

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MONDAY AFTERNOON JANUARY 29

WSSA Sustaining Member Exhibit Session

Location: Arlington IV

Chair: Randy Huckaba

7:45 a.m. Tuesday Sustaining Members Exhibits

Session meeting to elect a Chair-Elect.

Setup 12:00 noon – 3:00 p.m. Monday

8:00 a.m. – 5:00 p.m. Tuesday, Wednesday

8:00 a.m. – 12:00 noon Thursday

Please remove exhibits by 1:30 p.m. on

Thursday

TUESDAY MORNING JANUARY 30

Poster Session

Poster Contest - MS Students

*PRESENTER † STUDENT POSTER CONTEST

†Results from a 2015 and 2016 Survey to Determine the

Distribution and Frequency of Herbicide-Resistant

Horseweed (Conyza canadensis) in Missouri. E.

Oseland*1, M. Bish2, K. Bradley1; 1University of Missouri,

Columbia, MO, 2Missouri State University, Columbia, MO

(1)

Optimizing a Cereal Rye (Secale cereale) Cover Crop

Program for the Control of Glyphosate-Resistant

Horseweed (Conyza canadensis). A. Lamb*1, M. Loux1, A.

Dobbels1; 1The Ohio State University, Columbus, OH, (2)

†Cross Resistance Patterns to ALS-Inhibitors in

Beggarticks (Bidens spcs.) in Brazil. R. R. Mendes*1, R.

S. Oliveira1, J. Constantin1; 1State University of Maringá,

Maringá, Brazil (3)

†Cotton (Gossypium hirsutum) Response to

Combinations of Mepiquat Chloride, Glyphosate, and

Dicamba. T. Buck*1, A. York2, D. Stephenson3, B.

Woolam4, M. Askew5, S. Rustom3; 1LSU Ag Center, Gates,

NC, 2North Carolina State University, Cary, NC, 3LSU

AgCenter, Baton Rouge, LA, 4LSU Ag Center, Alexandria,

LA, 5North Carolina State University, Gates, NC, (4)

†Interval Between Sequential Glufosinate Applications

Influences Palmer Amaranth (Amaranthus palmeri)

Control. T. M. Randell*1, J. Smith1, A. Culpepper2; 1University of Georgia, Tifton, GA, 2University of Georgia,

Tifton, GA (6)

†Tank-Contamination of Dicamba Tank-Mixtures

Impacts Dry Bean (Phaseolus vulgaris) Maturity and

Yield. S. R. Bales*, C. Sprague; Michigan State University,

East Lansing, MI (7)

LOCATION: Arlington Salon IV

TIME: 8:00 AM - 10:00 AM

CHAIR: Martin Laforest

Agriculture and Agri-Food

Canada

Saint-Jean-sur-Richelieu,

Québec

MODERATOR: Martin Laforest

Agriculture and Agri-Food

Canada

Saint-Jean-sur-Richelieu,

Québec

15 146


Poster Contest - PhD Students

*PRESENTER † STUDENT POSTER CONTEST

†Examining Soil Microbes in Search of New

Compounds for Herbicide Discovery. L. Cheng*, J. T.

Kao-Kniffin; Cornell University, Ithaca, NY (8)

†Identification of Cross- and Multiple - Resistance in

Ambrosia artemisiifolia in North Carolina. B. Schrage*,

W. Everman, J. Sanders, T. N. OQuinn; North Carolina

State University, Raleigh, NC (9)

†Influence of Plant Regulators on Sourgrass (Digitaria

insularis) Control. F. G. Machado*; State University of

Maringá, Maringá - PR, Brazil (10)

†Biology, Impact, and Management of Sonchus

oleraceus L.: A Serious Invasive Weed in Australia. A.

M. Peerzada*1, C. C. ODonnell1, S. W. Adkins2; 1The

University of Queensland, Brisbane, Australia, 2University

of Queensland, Gatton, Australia (11)

†Automated Seed Counts and Verification of Seed

Production Estimates of Palmer Amaranth

(Amaranthus palmeri) Using a Computerized Particle

Analyzer. M. Bertucci*1, K. Jennings1, B. Jackson1, P.

Bartley1; 1NC State University, Raleigh, NC (12)

†Management of Glyphosate- and Dicamba-Resistant

Kochia (Kochia scoparia) in Roundup Ready® Xtend

Soybean. R. Yadav*1, P. Jha1, V. Kumar2, S. Leland1; 1Montana State University, Huntley, MT, 2Kansas State

University, Hays, KS (13)

†Influence of Residual Herbicide Application Rate on

PPO-Resistant and Susceptible Palmer Amaranth

(Amaranthus palmeri) in Tennessee. J. Copeland*1, M.

Wiggins2, L. Steckel1; 1University of Tennessee, Jackson,

TN, 2FMC, Humboldt, TN (14)

Leaching and Dynamics of Residual Herbicides in Soil

and Sugarcane (Saccharum officinarum) Residues in

Different Dry Periods. P. V. Da Silva*1, C. A. Carbonari2,

E. D. Velini3, R. C. Dias3, P. H. Dos Santos4, P. J.

Christoffoleti5, P. A. Monquero6; 1Universidade de Sao

Paulo/ESALQ, Fort Collins, CO, 2Unesp - Universidade

Estadual Paulista, Botucatu, Brazil, 3UNESP - FCA,

Botucatu, Brazil, 4UFSCar - CCA, Araras, Brazil, 5University of Sao Paulo, Piracicaba, Brazil, 6Universidade

Federal de São Carlos, Araras, Brazil (15)

Indaziflam, Imazapic and Amicarbazone Sorption,

Desorption and Interception by Sugarcane (Saccharum

officinarum) Residues. P. Da Silva*1, D. J. Sebastian2, S.

L. Clark2, M. Ortiz2, M. Figueiredo2, F. E. Dayan2, P. A.

Monquero3, P. J. Christoffoleti4, S. J. Nissen2; 1University

of São Paulo - Luiz de Queiroz College of Agriculture

(ESALQ/USP), São Paulo, Brazil, 2Colorado State

University, Fort Collins, CO, 3Universidade Federal de São

Carlos, Araras, Brazil, 4University of Sao Paulo, Piracicaba,

Brazil (16)

†Inheritance of Glyphosate Resistance in Giant

Ragweed (Ambrosia trifida L.). K. Segobye*; University

of Maryland, College Park, MD (17)

†Nozzle, Carrier Volume, and Weed Size Effect on

Glufosinate Efficacy. B. P. Sperry*1, D. Reynolds2; 1Mississippi State University, Micanopy, FL, 2Mississippi

State University, Mississippi State, MS (18)

Optimizing Chloracetamide Placement as a Component

of Pigweed (Amaranthus spcs.) and Kochia (Kochia

scoparia) control in Xtend Soybean (Glycine max) and

Cotton (Gossypium hirustum) Production Systems. J.

Buol*1, D. Reynolds1, L. Franca1, D. Dodds1, A. Mills2, T.

Butts3, G. Kruger3; 1Mississippi State University,

Mississippi State, MS, 2Monsanto Company, Collierville,

TN, 3University of Nebraska-Lincoln, North Platte, NE (19)

†Comparison of Various Tank Cleaners for Removal of

Dicamba from Contaminated Sprayers. Z. A. Carpenter*,

D. Reynolds, A. B. Johnson, A. Meredith, M. Green;

Mississippi State University, Mississippi State, MS (20)

†Using Remote Sensing to Detect Giant Smutgrass

(Sporobolus indicus) in Bahiagrass (Paspalum notatum)

Pastures. J. Dias*, W. Anderson, M. Piccolo, R. Boughton,

B. Sellers; University of Florida, Ona, FL (21)

17 16

†A Novel Amino Acid Substitution (Arg-132-His) in

Protoporphyrinogen Oxidase 2 Confers Broad

Spectrum PPO-Inhibitor Resistance in Lolium rigidum.

P. Fernandez Moreno*1, R. A. Aponte2, A. Landes2, R.

Campe2, R. De Prado Amian3; 1Dept of Agricultural

Chemistry & Edaphology, Cordoba, Spain, 2BASF SE,

Speyerer Str. 2, 67117 Limburgerhof, Germany,

Limburgerhof, Germany, 3 Córdoba, Spain (22)

†Competition Between the Exotic Grass Eragrostis

plana and Forage Grass Paspalum notatum Under

Drought Conditions. M. O. Bastiani*1, F. P. Lamego2, F.

C. Caratti3, D. Rockenbach3, A. Balbinot3, G. M. Souza3; 1University of Arkansas, Fayetteville, AR, 2Embrapa

Pecuária Sul, Bagé, Brazil, 3Universidade Federal de

Pelotas, Pelotas, Brazil (23)


Section 1. Agronomic Crops

*PRESENTER

Palmer Amaranth Control in South Dakota. S. A.

Clay*, B. M. Van De Stroet; South Dakota State

University, Brookings, SD (24)

Investigation of Multiple Herbicide Resistance in

Palmer Amaranth Populations in Kansas. V. Kumar*,

P. Stahlman; Kansas State University, Hays, KS (25)

Metabolism of Drift-Rate Dicamba in Susceptible

Soybean Affected by Water Stress. C. D. Willett*, E. M.

Grantz, J. Norsworthy; University of Arkansas,

Fayetteville, AR (26)

Optimizing Crop Rotations to Best Utilize Crop

Canopy Effects on Kochia Seed Bank Reduction: A

Multi-Site-Year Study. C. A. Lim*1, E. G. Mosqueda2, P.

Jha1, A. Kniss2, G. M. Sbatella2, N. C. Lawrence3; 1Montana State University, Huntley, MT, 2University of

Wyoming, Laramie, WY, 3University of Nebraska-

Lincoln, Pullman, WA (27)

Evaluation of Herbicide Programs in Oklahoma

Soybean. T. A. Baughman*1, R. Peterson2, D. Teeter1; 1Oklahoma State University, Ardmore, OK, 2OSU- Institute

for Agricultural BioScience, Ardmore, OK (28)

An Updated Meta-analysis of Soybean Response to

Dicamba. A. Kniss*; University of Wyoming, Laramie,

WY (29)

Evaluation of Inzen Technology as a Weed Management

Tool in Southern Great Plains Grain Sorghum. R.

Peterson*1, T. A. Baughman2, P. Dotray3, W. Grichar4, W.

Keeling5, D. Teeter2; 1OSU- Institute for Agricultural

BioScience, Ardmore, OK, 2Oklahoma State University,

Ardmore, OK, 3Texas Tech University, Lubbock, TX, 4Texas A&M University, Yoakum, TX, 5Texas A&M

AgriLife Research, Lubbock, TX (30)

POST Herbicide Efficacy Screen on Marestail: Round 2.

D. Lingenfelter*, W. Curran; Penn State, University Park,

PA (31)

Cotton Fruiting Pattern Following Dicamba Drift. K.

Russell*1, P. Dotray1, G. Ritchie2, S. Byrd3, T. A.

Baughman4, G. D. Morgan5; 1Texas Tech University,

Lubbock, TX, 2Texas Tech University, Texas A&M

AgriLife Research, Lubbock, TX, 3Texas A&M AgriLife

Extension, Lubbock, TX, 4Oklahoma State University,

Ardmore, OK, 5Texas A&M AgriLife Extension Service,

College Station, TX (32)

Canopy Hyperspectral Reflectance Properties of Palmer

Amaranth and Okra Leaf Cotton. R. Fletcher*1, R. B.

Turley2, K. Reddy3; 1USDA/ARS, Greenville, MS, 2USDA-

ARS Crop Genetics Research Unit, Stoneville, MS, 3USDA-ARS Crop Production Systems Res Unit,

Stoneville, MS (33)

Weed Management Systems in 2,4-D Tolerant Soybean.

C. H. Sanders*, M. W. Marshall; Clemson University,

Blackville, SC (34)

Safener-Regulated Tolerance to Herbicides in a

Dicotyledonous Crop—Sugar Beet. E. Buescher*1, D. W.

Morishita2, R. Ma1; 1University of Idaho, Moscow, ID, 2University of Idaho, Kimberly, ID (35)

Corn Yield Response to N Fertilizer Rate and Proximity

to Winter Annual Weeds at Emergence. B. S. Heaton*,

M. Bernards; Western Illinois University, Macomb, IL (36)

19 18

Palmer Amaranth Response to Glufosinate - Auxin

Herbicide Mixtures. W. B. McCloskey*; University of

Arizona, Tucson, AZ (37)

Horseweed Management in Oklahoma Winter Wheat.

M. Manuchehri*1, J. Crose2, K. Cole2, R. N. Rupp3, B.

Lindenmayer4, D. C. Cummings5; 1Oklahoma State

University, Stillwater, OK, 2, Stillwater, OK, 3FMC,

Edmond, OK, 4Syngenta, Perkins, OK, 5Dow

AgroSciences, Bonham, TX (38)

Evaluation of Summer Application of Saflufenacil in

Non-Dormant Alfalfa. P. Devkota*; University of

California Agriculture and Natural Resources, Holtville,

CA (39)

On-farm Evaluation of Pre- and Post-emergence

Herbicides for Weed Control in Cassava (Manihot

esculenta Crantz). F. Ekeleme*1, A. Dixon1, G. Atser1, S.

Hauser1, H. Usman2, P. M. Olorunmaiye3, A. Olojede4, S.

Korie1, S. Weller5; 1International Institute of Tropical

Agriculture, Ibadan, Nigeria, 2University of Agriculture

Makurdi, Makurdi, Nigeria, 3Federal University of

Agriculture, Abeokuta, Nigeria, 4National Root Crops

Research Institute, Umuahia, Nigeria, 5Purdue University,

West Lafayette, IN (40)

Evolution of ALS-Resistant Downy Brome in Montana

Cereal Production. P. Jha*1, V. Kumar2, A. J1, R. Yadav1,

C. A. Lim1, S. Leland1; 1Montana State University,

Huntley, MT, 2Kansas State University, Hays, KS (41)

Wild Carrot (Daucus carota L.) Control in Corn,

Soybean, and Winter Wheat. N. Soltani*1, C.

Shropshire1, P. Sikkema1; 1University of Guelph,

Ridgetown, ON (42)

Potential Yield Losses in Corn, Soybean and Dry Bean

in North America. N. Soltani*1, J. Dille2, I. C. Burke3, W.

Everman4, M. J. VanGessel5, V. Davis6, P. Sikkema1; 1University of Guelph, Ridgetown, ON, 2Kansas State

University, Manhattan, KS, 3Washington State University,

Pullman, WA, 4North Carolina State University, Raleigh,

NC, 5University of Delaware, Georgetown, DE, 6BASF,

Verona, WI (43)

Impact of Variety, Planting Date, and Application

Timing on Soybean Tolerance to Sublethal Rates of

Dicamba. T. N. O Quinn*, W. Everman; North Carolina


Influence of Timing of Weed Control in Dicamba-

Tolerant Cotton on Cotton Yield and Economic Return.

M. Inman*1, D. Jordan1, A. York2, A. Hare1; 1North

Carolina State University, Raleigh, NC, 2North Carolina

State University, Cary, NC (45)

Change in Weed Species Composition After Six Years of

Continuous Use of Glyphosate and Dicamba in Cotton.

D. Jordan*, M. Inman, A. Hare; North Carolina State

University, Raleigh, NC (46)

Preemergence Options for Glyphosate and ALS

Resistant Palmer Amaranth in Soybeans. S. Beam*1, M.

Flessner2, K. B. Pittman3, L. Rector3, K. W. Bamber3, C.

Leon4, K. Liberator5, D. Waldstein5, C. Asmus6; 1Virginia

Tech, Concord, NC, 2Virginia Tech PPWS Dept.,

Blacksburg, VA, 3Virginia Tech, Blacksburg, VA, 4Hershey, PA, 5BASF, Raleigh, NC, 6BASF Corporation,

Research Triangle Park, NC (47)

Critical Weed Free Period of Grass Species in Grain

Sorghum. D. J. Contreras*, W. Everman; North Carolina


Effect of Simulated Isoxaflutole Drift on Non-HPPD

Tolerant Soybean. D. Stephenson*1, B. Woolam2, T.

Buck3; 1LSU AgCenter, Baton Rouge, LA, 2LSU Ag

Center, Alexandria, LA, 3LSU Ag Center, Gates, NC (49)

Evaluating the Potential for Intercropping Forage

Radish (Raphanus sativus) with Winter Wheat. K. B.

Pittman*1, M. Flessner2, S. Beam3, K. W. Bamber1; 1Virginia Tech, Blacksburg, VA, 2Virginia Tech PPWS

Dept., Blacksburg, VA, 3Virginia Tech, Concord, NC (50)

Tolpyralate Crop Selectivity – A New HPPD Inhibitor

Herbicide for Postemergence Use in Corn. H.

Okamoto*1, A. J. Raeder2, H. Kikugawa1, D. Tonks2, M.

Parks2; 1ISK Biosciences, Osaka, Japan, 2ISK Biosciences

Americas, Concord, OH (51)

Rotational Crop Responses Following Postemergence

Applications of Tolpyralate in Corn. A. J. Raeder*1, H.

Okamoto2, H. Kikugawa2, M. Parks1, D. Tonks1; 1ISK

Biosciences Americas, Concord, OH, 2ISK Biosciences,

Osaka, Japan (52)

Postemergence Options for Control of Multiple-

Resistant Palmer Amaranth in Tennessee. S. Steckel*1, J.

Copeland2, L. Steckel2; 1University of TN, Jackson, TN, 2University of Tennessee, Jackson, TN (53)

20 21

Evaluation of 2,4-D and Dicamba Residual Effect on

Cotton Establishment and Yield. K. J. Price*, S. Li;

Auburn University, Auburn, AL (54)

Variable Response of Kansas Kochia scoparia

Accessions to Dicamba. R. P. Engel*1, V. Kumar2, P.

Stahlman2; 1Fort Hays State University, Hays, KS, 2Kansas

State University, Hays, KS (55)

Effect of Light Intensity on Efficacy of Dicamba and

Glufosinate on Amaranthus palmeri. C. Meyer*, J.

Norsworthy, M. Moore, J. Green; University of Arkansas,


The Effect of Palmer Amaranth Competition on Soil

Moisture Availability in Soybean. D. Joseph*1, M. W.

Marshall2; 1Clemson University, Edisto Research &

Education Center, Clemson, SC, 2Clemson University,

Blackville, SC (57)


Section 2. Horticultural Crops

*PRESENTER

Weed Control Products for Organically Grown

Vegetables. J. O'Sullivan*1, R. Van Acker2, R. Riddle3, P.

H. White1; 1University of Guelph, Simcoe, ON, 2, Guelph,

Canada, 3University of Guelph, Simcoe, ON (58)

Weed Suppression Varies with Cover Crop Mixture

Composition. J. Morales, P. Ahuja, C. A. Chase*;

University of Florida, Gainesville, FL (59)

Application Timing and Rate Effects of Oryzalin on

Sweetpotato Tolerance. S. Chaudhari*1, K. Jennings1, S.

Meyers3, D. Miller4; 1North Carolina State University,

Raleigh, NC, 3Mississippi State University, Mississippi

State, MS, 4LSU AgCenter, St. Joseph, LA (60)

Weed Control and Caladium Tolerance to

Sulfonylurea Herbicides. J. Yu*1, N. Boyd2; 1Univ. of

Florida, Tampa, FL, 2University of Florida, Wimauma, FL

(61)

Weed Control in Fall Planted Cabbage Following

Glyphosate-Tolerant or Cover Crops. P. Dittmar*1, T.

Batts2, L. Zotarelli1, J. Ferrell1, D. Treadwell1; 1University

of Florida, Gainesville, FL, 2LSU Ag Center, Gainesville,

FL (62)

Confirmation, Characterization and Control of

Glufosinate-Resistant Italian Ryegrass in California. P.

Tehranchian*1, R. S. Beffa2, M. Jasieniuk1; 1University of

California-Davis, Davis, CA, 2Bayer Crop Science,

Frankfort / Main, Germany, (63)


Section 3. Turf and Ornamental Crops

*PRESENTER

Physiological Basis for Selectivity of Florasulam in Tall

Fescue. J. Yu1, M. A. Czarnota2, P. McCullough*3; 1Univ.

of Florida, Tampa, FL, 2University of Georgia, Williamson,

GA, 3University of Georgia, Griffin, GA (64)

Repetitive Overseeding of Athletic Fields for Organic

Weed Management. M. A. Gannett*1, J. Lampman2, J.

Stengle3, K. Murray4, T. Yeh5, G. Thompson6, K.

Wickings6, F. Rossi6, J. Grant6, M. Petrovic6, J. T. Kao-

Kniffin6; 1Cornell University, ITHACA, NY, 2Cornell

Cooperative Extension, Voorheesville, NY, 3Cornell

Cooperative Extension, Brewster, NY, 4Maine Department

of Agriculture, Conservation, and Forestry, Augusta, ME, 5Cornell Cooperative Extension, Riverhead, NY, 6Cornell

University, Ithaca, NY (65)

Fiesta (FeHEDTA) Safety to Dormant and Actively

Growing Ornamental Nursery Crops. J. Neal*1, C. D.

Harlow2; 1North Carolina State University, Raleigh, NC, 2NC State University, Raleigh, NC (66)

The Main Trouble Weeds in Golf Turf of China. G.

Xue*1, J. Du2, C. Li2; 1Plant Protection Institute of Jiangsu

Academy of Agricultural Sciences; East China Weed

Technology Institute, Nanjing, Peoples Republic of China, 2East China Weed Technology Institute, Nanjing, Peoples

Republic of China (67)

22 23

Effects of Three Fertilization Methods on Weed

Growth and Herbicide Performance in Soilless Nursery

Substrates. C. Stewart*1, C. Marble2, B. J. Pearson1, C.

Wilson3; 1University of Florida - Mid Florida Research

and Education Center, Apopka, FL, 2University of Florida,

Apopka, FL, 3University of Florida, Gainesville, FL (68)


Section 4. Pasture, Rangeland, Forest, and

Rights of Way

*PRESENTER

Using MaxEnt Modeling to Predict Hybrid Toadflax

Invasion. K. R. McCartney1, S. Sing2, S. M. Ward*1; 1Colorado State University, Fort Collins, CO, 2, Bozeman,

MT (69)

Evaluation of Lespedeza Control Options on a

Reclaimed Mine Site. J. Omielan*1, S. Flynn2; 1University of Kentucky, Lexington, KY, 2Dow

AgroSciences, Lees Summit, MO (70)

Impact of Low Use Rates of Glyphosate on Coastal

Bermudagrass Productivity. M. W. Marshall*, C. H.

Sanders; Clemson University, Blackville, SC (71)


Section 5. Wildland and Aquatic Invasive

Plants

*PRESENTER

Effects of Short-Chain Fatty Acids on the Symbiosis

Between Plant Roots and Bacterial Endosymbionts. K.

L. Kingsley*1, K. P. Kowalski2, M. T. Elmore1, K. H.

Diehl1, S. K. Verma3, J. F. White1; 1Rutgers University,

New Brunswick, NJ, 2U.S. Geological Survey, Ann Arbor,

MI, 3Banaras Hindu University, Varanasi, India (72)

A Comparative Analysis of Random Forest with Logistic

Regression for Weed Risk Assessment. W. Peer*, C.

Harris; University of Maryland, College Park, MD (73)


Section 6. Regulatory Aspects

*PRESENTER

2017 EPA Tour of Western Kansas. D. Peterson*1, P.

Stahlman2, C. Thompson1, J. Dille1, M. Jugulam1, R.

Currie3, M. Barrett4, J. Schroeder5, L. Van Wychen6; 1Kansas State University, Manhattan, KS, 2Kansas State

University, Hays, KS, 3Kansas State University, Garden

City, KS, 4Univ of KY Dept of Plant & Soil Sciences,

Lexington, KY, 5USDA Office of Pest Management Policy,

Arlington, VA, 6WSSA, Alexandria, VA (74)

Kansas Mesonet Real-Time Temperature Inversion

Decision Tool. C. Redmond, D. Peterson*, C. Thompson;

Kansas State University, Manhattan, KS (75)


Section 7. Teaching and Extension

*PRESENTER

Digital Books for Weed Science. B. Ackley*; The Ohio

State University, Columbus, OH (76)


Section 8. Formulation, Adjuvant and

Application Technology

*PRESENTER

Enhancing Glyphosate Tensioactive Traits Without

Reducing Penetration: A New Approach. J. Menendez*1,

D. Camacho2, E. Martin2; 1Universidad de Huelva, Palos De

La Frontera, Spain, 2DAYMSA, Zaragoza, Spain (77)

24 25

Effect of Drift Control Adjuvants on Droplet

Evaporation, pH, and Viscosity Using Engenia™ and

Xtendimax™ Approved Tank Mixes. C. Ferguson*1, P.

H. Urach Ferreira1, M. T. Wesley1, D. Reynolds1; 1Mississippi State University, MS State, MS (78)

Effect of New Sphingolipid- and Protein-Based

Adjuvants on Glyphosate Adherence and Penetration.

J. Menendez*1, P. Ramirez-Rubio2, N. Sierras2; 1Universidad de Huelva, Palos De La Frontera, Spain, 2Bioiberica, Barcelona, Spain (79)

Should I Spend Money on AMS or More Glyphosate to

Increase Weed Control? M. Bernards*1, B. S. Heaton1,

B. Young2, R. Zollinger3; 1Western Illinois University,

Macomb, IL, 2Purdue University, Brookston, IN, 3North

Dakota State Univ, Fargo, ND (80)

Meta-Analysis of Broadleaf Weeds Control in Winter

Wheat and Barley with Pixxaro Herbicide in Mexico.

E. Lopez*1, A. Bolaños2; 1Crop Protection R&D, Bahia De

Banderas, Mexico, 2Professor, Texcoco, Mexico (81)


Section 9. Weed Biology and Ecology

*PRESENTER

Baseline Tolerance to Dicamba and 2,4-D of

Waterhemp Populations from Across the Corn Belt. J.

Scursoni1, M. V. Bagavathiannan2, A. Davis3, F.

Forcella*4, G. G. Gramig5, E. Haramoto6, M. Horak7, N.

C. Lawrence8, M. Loux9, W. Johnson10, J. Morello1, M.

Owen11, C. Sprague12, D. E. Stoltenberg13; 1University of

Buenos Aires, Buenos Aires, Argentina, 2University of

Arkansas, College Station, TX, 3Illinois State University,

Urbana, IL, 4USDA, Morris, MN, 5North Dakota State

University, Fargo, ND, 6University of Kentucky,

Lexington, KY, 7Monsanto Company, Saint Louis, MO, 8University of Nebraska-Lincoln, Pullman, WA, 9 The

Ohio State University, Columbus, OH, 10Purdue

University, West Lafayette, IN, 11Iowa State University,

Ames, IA, 12Michigan State University, East Lansing, MI, 13Univ of Wisconsin-Madison, Madison, WI (82)

Do Escaped Transgenes Persist and Thrive? The

Brassica rapa Case. M. Simard*1, M. Laforest2, M.

Cuerrier3; 1Agriculture and Agri-Food Canada, Saint-jean-

sur-Richelieu, QC, 2Agriculture and Agri-Food Canada, St-

jean-sur-Richelieu, QC, 3Centre de recherche sur les grains

(CÉROM), Saint-Mathieu-de-Beloeil, QC (83)

A New Hydrothermal Time Model for Seed

Germination. M. B. Mesgaran*1, A. Onofri2, R. D.

Cousens3; 1University of California-Davis, Davis, CA, 2University of Perugia, Perugia, Italy, 3University of

Melbourne, Melbourne, Australia (84)

Potential Yield Loss in Grain Sorghum Due to Weeds. J.

Dille*1, C. Thompson1, P. Stahlman2, N. Soltani3, P.

Sikkema3, W. Everman4, M. J. VanGessel5; 1Kansas State

University, Manhattan, KS, 2Kansas State University, Hays,

KS, 3University of Guelph, Ridgetown, ON, 4North

Carolina State University, Raleigh, NC, 5University of

Delaware, Georgetown, DE (85)

Morphological and Physiological Characterization of

California Weedy Rice. T. B. De Leon*1, K. Al-Khatib2,

T. Blank3, L. A. Espino4, R. G. Mutters5, M. Leinfelder-

Miles6, B. A. Linquist1, W. B. Brim-Deforest7; 1University

of California-Davis, Davis, CA, 2California Crop

Improvement Association, Davis, CA, 3University of

California Cooperative Extension, Colusa, CA, 4University

of California Cooperative Extension, Oroville, CA, 5University of California Cooperative Extension, Stockton,

CA, 6University of California Cooperative Extension, Yuba

City, CA (86)

Weed Seedling Emergence in Two Extreme Years in

Central New York State. A. DiTommaso*1, C. A.

Marschner2, S. H. Morris2, S. Cordeau3; 1Cornell

University, Dryden, NY, 2Cornell University, Ithaca, NY, 3INRA, Dijon, France (87)

The Orobanche cumana x Orobanche cernua Genetic

System Provides Insight into the Regulation of

Germination Specificity in a Parasitic Plant. H. Larose1,

D. Plakhine2, N. Wycoff1, H. Eizenberg3, Y. Tadmor2, D.

Nelson4, J. Westwood*1; 1Virginia Tech, Blacksburg, VA, 2Newe Ya’ar Research Center, A.R.O., Ramat Yishay,

Israel, 3Agricultural Research Organization, Newe Ya’ar

Research Center, Ramat Yishay, Israel, 4University of

California-Riverside, Riverside, CA (88)

26 27

Characterization of the Phelipanche-Host Defense

Interaction. C. Clarke1, R. Tuosto2, S. Park2, X. Jia2, L.

Honaas3, P. Ralph3, E. Wafula3, Z. Yang3, H. Zhang3, C.

dePamphilis3, J. Westwood*2; 1United States Department

of Agriculture, Agricultural Research Service, Beltsville,

MD, 2Virginia Tech, Blacksburg, VA, 3Penn State

University, University Park, PA (89)

Surveying the Distribution of Herbicide Resistance in

Ryegrass (Lolium spp.) in Wheat Production Systems in

Texas. V. Singh*, S. Abugho, A. Maity, M.

Bagavathiannan; Texas A&M University, College Station,

TX (90)

Photosystem II Inhibitors Resistance in Common

Ragweed (Ambrosia artemisiifolia). M. Laforest*1, M.

Simard2, B. Soufiane3, D. L. Benoit4, F. J. Tardif5; 1Agriculture and AgriFood Canada, St-jean-sur-Richelieu,

QC, 2Agriculture and Agri-Food Canada, Saint-jean-sur-

Richelieu, QC, 3Agriculture and Agri-Food Canada, St-

Jean-sur-Richelieu, QC, 4Agriculture and Agri-Food

Canada, St Jean sur Richelieu, QC, 5University of Guelph,

Guelph, ON (91)

The Research on Biological Characteristics and

Control Strategy of Sagittaria pygmaea in Central

Hunan, China. Y. Zhou1, Y. Hu2, J. li2, X. Liu2, X.

Zhang2, K. Peng1, C. Jin*2; 1Hunan University of

Humanities, Science and Technology, Loudi, Peoples

Republic of China, 2Hunan University of Humanities,

Science and Technology, Loudi, Peoples Republic of

China (92)

Seedbank Persistence of Palmer Amaranth and

Waterhemp in the Mid-South United States. N. E.

Korres*1, J. Norsworthy2, B. Young3, D. Reynolds4, W.

Johnson5, S. P. Conley6, R. Smeda7, T. Mueller8, M. V.

Bagavathiannan9; 1University of Arkansas, Fayetteville,

AR, 2University of Arkansas, Fayetteville, AR, 3Purdue

University, Brookston, IN, 4Mississippi State University,

Mississippi State, MS, 5Purdue University, West

Lafayette, IN, 6University of Wisconsin, Madison, WI, 7University of Missouri-Division of Plant Sciences,

Columbia, MO, 8University of Tennessee, Knoxville, TN, 9University of Arkansas, College Station, TX (93)

Investigation of Goosegrass Phenotypic Variation. J. S.

McElroy*, A. Boyd, J. Harris; Auburn University, Auburn,

AL (94)

Seed Germination Ecology of Meadow Knapweed

(Centaurea x moncktonii) Populations in New York

State. A. DiTommaso*1, L. R. Milbrath2, C. A. Marschner3,

S. H. Morris3, J. Biazzo2; 1Cornell University, Dryden, NY, 2USDA-ARS, Ithaca, NY, 3Cornell University, Ithaca, NY

(95)

Allowing Temporary Weed Seed Bank Growth does not

Affect Cash Crop Yield in an Integrated Livestock-Row

Crop Rotation. R. Leon*1, D. Wright2; 1University of

Florida, Raleigh, NC, 2University of Florida, Quincy, FL

(96)

Herbicide Resistance and its Management in Jiangsu

Province. Y. Lou*, H. Wang; Institute of Plant Protection,

Nanjing, Peoples Republic of China (97)

Seedling Emergence Model to Optimize Preemergence

Herbicide Application in Junglerice (Echinochloa

colona). G. A. Picapietra1, H. A. Acciaresi*2; 1Instituto

Nacional de Tecnologia Agropecuaria, Pergamino,

Argentina, 2Instituto Nacional Tecnologia Agropecuaria,

Pergamino, Argentina (98)

Relationship Between Growth Habit and Aboveground

Dry Matter in Junglerice (Echinochloa colona). G. A.

Picapietra1, H. A. Acciaresi*2; 1Instituto Nacional de

Tecnologia Agropecuaria, Pergamino, Argentina, 2Instituto

Nacional Tecnologia Agropecuaria, Pergamino, Argentina

(99)

Survey of Weed Species and Test of Herbicides Mixed in

Barrels for Weeds Control in Camellia oleifera Abel

Forest in Hunan Province. C. Jin*, X. Zhang, Y. Zhou, Y.

Hu; Hunan University of Humanities, Science and

Technology, Loudi, Peoples Republic of China (100)

Cover Crop Utilization Influences Weed Management

Potential. E. Haramoto*, R. Pearce; University of

Kentucky, Lexington, KY (101)

Potential of Callisia repens as a native cover for weed

management in perennial tropical plantations. R.

Gomez1, F. García*2, S. Marin2; 1University of Costa Rica,

San Jose, Costa Rica, 2University of Costa Rica, San José,

Costa Rica (102)

288

29


Section 10. Biocontrol of Weeds

*PRESENTER

Mass production of Fusarium-based granular

mycoherbicide for the management of crenate

broomrape in Egypt. Y. M. Shabana*1, M. M. El-

Hawary2, M. E. Sadek1; 1Mansoura University, El-

Mansoura, Egypt, 2Agricultural Research Center, Giza,

Egypt (103)

Bacterial Seed Endophytes of Smooth Crabgrass

(Digitaria ischaemum) Increase Broadleaf Weed

Seedling Mortality. M. T. Elmore*1, J. F. White1, K. L.

Kingsley1, K. H. Diehl1, D. P. Tuck1, S. K. Verma2; 1Rutgers University, New Brunswick, NJ, 2Banaras Hindu

University, Varanasi, India (104)

Use of Hot Water to Enhance Bioherbicidal

Performance of a Fungus. C. D. Boyette*1, R.

Hoagland2, K. C. Stetina3; 1USDA/ARS, Stoneville, MS, 2USDA-ARS. CPSRU, Stoneville, MS, 3USDA-ARS,

Stoneville, MS (105)


Section 11. Physiology

*PRESENTER

Locating Anthroquinone Biosynthesis in Sicklepod

Cells Using its UV Fluorescence Property. Z. Yue*, T.

Tseng; Mississippi State University, Starkville, MS (106)

Glyphosate Hormesis in Preconditioned Brachiaria

decumbens. G. L. Gimenes Cotrick Gomes*1, E. D.

Velini2, C. A. Carbonari2; 1Faculdade de Ciências

Agronômicas / Unesp, Botucatu, Brazil, 2Unesp - Univ.

Estadual Paulista, Botucatu, Brazil (107)

Repeated Low-Dose Selection Results in Reduced

Susceptibility of Palmer Amaranth to Mesotrione. V.

Varanasi*1, C. Brabham1, M. V. Bagavathiannan2, J.

Norsworthy1; 1University of Arkansas, Fayetteville, AR, 2University of Arkansas, College Station, TX (108)

The Efficacy of Dicamba on PPO-Inhibitor Resistant

and Susceptible Palmer Amaranth Accessions from

Arkansas. C. Brabham*, V. Varanasi, J. Green, J.

Norsworthy; University of Arkansas, Fayetteville, AR (109)

Exploring the Dioecious Nature of Palmer Amaranth. N.

E. Korres*1, J. Norsworthy2; 1University of Arkansas,

Fayetteville, AR, 2University of Arkansas, Fayetteville, AR

(110)

Effect of Temperature and CO2 Levels on Cyhalofop-

butyl Absorption, Translocation and Efficacy in

Echinochloa ecotypes (Echinochloa colona). J. P. Refatti1,

L. A. Avila*1, N. Roma-Burgos2, E. R. Camargo3, L. H.

Ziska4, R. Salas2; 1Universidade Federal de Pelotas, Pelotas,

Brazil, 2University of Arkansas, Fayetteville, AR, 3Federal

University of Pelotas (UFPel), Pelotas, Brazil, 4USDA-

ARS, Beltsville, MD (111)

Parthenium hystherophorus: A New Glyphosate-

Resistant Weed in Mexico. C. Palma-Bautista1, J. A.

Dominguez-Valenzuela1, P. Fernandez Moreno2, H. Cruz-

Hipolito3, R. Alcantara-de la Cruz4, R. De Prado Amian*5; 1Universidad Chapingo, Texcoco, Mexico, 2Dept of

Agricultural Chemistry & Edaphology, Cordoba, Spain, 3Bayer CropScience, Mexico D.C., Mexico, 4University of

Viçosa, Viçosa, Brazil, 5Córdoba, Spain (112)

A Novel Amino Acid Substitution Ala-103-Val in EPSPS

has been Found in Glyphosate Resistant A. hybridus. M.

J. Garcia-del Rosal1, E. Bracamonte2, P. Fernandez

Moreno3, R. Alcantara-de la Cruz4, R. De Prado Amian*5; 1Departamento de Ecología, Botánica y Fisiología Vegetal

Facultad de Ciencias Universidad de Córdoba Campus de

Rabanales, edificio C4, Cordoba, Spain, 2University of

Cordoba, Cordoba, Argentina, 3Dept of Agricultural

Chemistry & Edaphology, Cordoba, Spain, 4University of

Viçosa, Viçosa, Brazil, 5Córdoba, Spain (113)

Locoweed-Fungal Endophyte Complex: Does Epigenetic

Inheritance Play a Role in Locoweed Fecundity and

Physiology? B. K. Keith1, S. M. Ward2, T. M. Sterling*1; 1Montana State University, Bozeman, MT, 2Colorado State

University, Fort Collins, CO (114)

308

31

Multiple Resistances to Herbicides in a Diquat-

Resistant Epilobium ciliatum in Chile. B. Khalil

Tahmasebi1, E. Alcantara2, R. Dominguez2, P. Fernandez

Moreno*3, R. Alcantara-de la Cruz4, R. De Prado Amian5; 1university mohaghegh ardebil, ardebil, Iran, 2University

of Cordoba, Cordoba, Spain, 3Dept of Agricultural

Chemistry & Edaphology, Cordoba, Spain, 4University of

Viçosa, Viçosa, Brazil, 5, Córdoba, Spain (115)

Characterization of ALS-Inhibiting Herbicide

Resistance in California Multiple-Resistant Italian

Ryegrass Populations. P. Tehranchian*1, V. Nandula2, C.

Fautt3, M. Jasieniuk1; 1University of California- Davis,

CA, 2USDA-ARS, Cleveland, MS (116)


Section 12. Soil and Environmental Aspects

*PRESENTER

Effect of Bonechar Addition on Metribuzin Mobility by

Soil Thin-Layer Chromatography. K. F. Mendes*1, F.

G. Alonso2, L. V. Junqueira2, V. Takeshita2, V. L.

Tornisielo2; 1Center of Nuclear Energy in Agriculture -

University of São Paulo, Piracicaba, Brazil, 2CENA/USP,

Piracicaba, Brazil (117)

Effect of Soil Organic Matter Content on Atrazine

Bioavailability. R. L. Kanaziz*1, T. Gannon2, K. Ahmed2,

S. Brinton2; 1North Carolina State University, North

Branch, MI, 2North Carolina State University, Raleigh, NC

(118)

Evaluation of 2,4-D Spray Drift from a Terrestrial

Application Under Field Conditions. M. Noguera*1, E.

R. Camargo2, L. Avila1, M. Zimmer3, K. Egewarth1, R.

Becker4, F. Brunetto1, J. Hubner1; 1Federal University of

Pelotas, Pelotas, Brazil, 2Federal University of Pelotas

(UFPel), Pelotas, Brazil, 3University of Purdue, West

Lafayette, IN, 4Adama, Cruz Alta, Brazil (119)

Herbicides Dissolved in Tailwater Irrigation and Their

Impact on Susceptible Soybean. M. N. Thompson1, C. D.

Willett*1, E. M. Grantz1, D. L. Leslie2, M. L. Reba3, J.

Norsworthy1; 1University of Arkansas, Fayetteville, AR, 2Arkansas Tech University, Russellville, AR, 3USDA-

Agricultural Research Service, Jonesboro, AR (120)

Dynamics of Herbicides Applied to Eucalyptus and

Sugarcane Harvest Residues. C. A. Carbonari*1, G. L.

Gimenes Cotrick Gomes2, E. D. Velini3, E. B. Castro3; 1Unesp - Universidade Estadual Paulista, Botucatu, Brazil, 2Faculdade de Ciências Agronômicas / UNESP, Botucatu,

Brazil, 3Unesp - Univ. Estadual Paulista, Botucatu, Brazil

(121)

Indaziflam and Saflufenacil Herbicides in Crops and

Microorganisms. B. A. Torres*1, P. V. Da Silva2, P. A.

Monquero3; 1UFSCar, Sao Paulo, Brazil, 2Universidade de

Sao Paulo/ESALQ, Fort Collins, CO, 3Universidade Federal

de São Carlos, Araras, Brazil (122)


Section 13. Integrated Weed Management

*PRESENTER

Remote Sensing Applications for Weed Species

Differentiation. J. Sanders, W. Everman*; North Carolina


Evaluating Harvest Weed Seed Controls for Italian

Ryegrass (Lolium perenne ssp. multiflorum)

Management in Mid-Atlantic Wheat Production. S. C.

Haring*1, M. Flessner2, W. Everman3; 1University of

California-Davis, Davis, CA, 2Virginia Tech PPWS Dept.,

Blacksburg, VA, 3North Carolina State University, Raleigh,

NC (124)

Integrated Management of Ragweed Parthenium

(Parthenium hysterophorus) in Direct-Seeded Rice

(Oryza sativa). A. A. Bajwa*1, M. Farooq2, B. S. Chauhan1,

S. W. Adkins1; 1University of Queensland, Gatton,

Australia, 2University of Agriculture Faisalabad,

Faisalabad, Pakistan (125)

328

33

Influence of Cover Crop Species on Weed Emergence.

M. Buratovich1, H. A. Acciaresi*2; 1INTA-CONICET,

Pergamino, Argentina, 2Instituto Nacional Tecnologia

Agropecuaria, Pergamino, Argentina (126)

Early Vigour: A Useful Trait for Enhanced Wheat

Competitiveness Against Weeds. M. Cena1, H. A.

Acciaresi*2; 1CIC (Bs.As.), Pergamino, Argentina, 2Instituto Nacional Tecnologia Agropecuaria, Pergamino,

Argentina (127)

Cultural Weed Control in Soybean: Does it Matter? J.

D. Rosset1, R. H. Gulden*2; 1University of Manitoba,

Winnipeg, MB, 2University of Manitoba, Winnipeg, MB

(128)

Susceptibility of California Weedy Rice to Herbicides.

W. B. Brim-Deforest*1, T. B. De Leon2, K. Al-Khatib2; 1University of California Cooperative Extension, Yuba

City, CA, 2University of California- Davis, Davis, CA,

(129)


Oral Contest - MS Student

*SPEAKER † STUDENT CONTEST

LOCATION: Arlington Salon I

TIME: 10:00 AM - 12:00 PM

CHAIR: Stephen Schraer

Syngenta

Meridian, ID

CO-CHAIR: Darrin Dodds

Mississippi State University

Mississippi State, MS

MODERATOR: Stephen Schraer

Syngenta

Meridian, ID

10:00 †Grain Sorghum (Sorghum bicolor) and Grass

Weeds: Is There a Critical Period of Weed

Control? J. Albers*1, J. Dille1, D. Peterson1, P.

Stahlman2; 1Kansas State University, Manhattan,

KS, 2Kansas State University, Hays, KS (130)

10:15 †Differential Sensitivity of Weedy Rice (Oryza

sativa L.) Germplasm to Herbicides. S.

Shrestha*1, N. Roma-Burgos2, G. Sharma1, T.

Tseng1; 1Mississippi State University, Starkville,

MS, 2University of Arkansas, Fayetteville, AR

(131)

10:30 †The History and Spread of Palmer Amaranth

(Amaranthus palmeri) in Ohio. A. Lamb*1, M.

Loux1; 1The Ohio State University, Columbus,

OH (132)

10:45 †Investigations of the Sensitivity of Various

Tree and Ornamental Species to Driftable

Fractions of 2,4-D and Dicamba. B. R.

Dintelmann*1, G. Bunton1, M. Warmund1, M.

Bish2, K. Bradley1; 1University of Missouri,

Columbia, MO, 2Missouri State University,

Columbia, MO (133)

11:00 †Potential Induction of Systemic Acquired

Resistance in Soybean (Glycine max) by Soil-

Applied Herbicides and the Effects on Disease

Development. R. Stolte*1, A. M. Fakhoury2, J. P.

Bond2, K. Gage3; 1SIU Weed Science,

Carbondale, IL, 2Plant Pathologist, Carbondale,

IL, 3Southern Illinois University, Carbondale, IL

(134)

11:15 †Tolerance of Sweet Potato (Ipomoea batatas)

to Herbicides Applied in Plant Propagation

Beds. S. Smith*, K. Jennings, D. Monks; North

Carolina State University, Raleigh, NC (135)

11:30 †Organic weed management in Pulse Crops.

O. Alba*; Mr., Saskatoon, SK (136)

11:45 †Influence of Multiple Herbicide Resistance

on Growth and Development in Selected

Populations of Amaranthus

tuberculatus (Waterhemp). E. Jones*, M.

Owen; Iowa State University, Ames, IA (137)

34 35


Oral Contest - MS Students II



Oral Contest - PhD Students I

LOCATION: Arlington Salon II

TIME: 10:00 AM - 11:45 AM


Syngenta

Meridian, ID





Syngenta

Meridian, ID

10:00 †Fall Panicum (Panicum

dichotomiflorum) Control and Sugarcane

(Saccharum officinarum) Response to

Topramezone Alone or in Tank-Mixing with

Triazine Herbicides. R. Mereb Negrisoli*1, D.

Odero1, G. E. MacDonald2, B. Sellers3, H.

Laughinghouse4; 1University of Florida, Belle

Glade, FL, 2University of Florida, Gainesville,

FL, 3University of Florida, Ona, FL, 4University

of Florida, Fort Lauderdale, FL (138)

10:15 Remote Determination of Weed Species and

Density in Sweet potato (Ipomoea batatas)

Using In-Situ Spectroscopy. N. Basinger*1, K.

Jennings1, E. L. Hestir3, D. Monks2, W.

Everman2, D. Jordan2; 1North Carolina State

Univ., Raleigh, NC, 3University of California,

Merced, CA (139)

10:30 †Effect of Soil- vs. Foliar-Applied ALS-

Inhibiting Herbicides on Control of ALS-

Resistant Horseweed (Conyza canadensis). J. E.

Boe*1, H. Nie2, J. Young3, B. Young3; 1Purdue

University, Lafayette, IN, 2Purdue University,

West Lafayette, IN, 3Purdue University,

Brookston, IN (140)

10:45 Determining the Effects of Increased Rinse

Volumes on Dicamba Removal from

Contaminated Sprayers. Z. A. Carpenter*, D.

Reynolds, A. B. Johnson; Mississippi State

University, Mississippi State, MS (141)

11:00 †Conquering Linuron Resistant Pigweed

(Amaranthus sp.) in Carrot (Daucus carota). T.

J. de Boer*1, C. Swanton2; 1University of Guelph,

Guelph, ON, 2University of Guelph, Department

of Plant Agriculture, Guelph, ON (142)

11:15 Effect of Nozzle, Carrier Volume, and Cover

Crop Residue on Residual Herbicide Efficacy.

B. P. Sperry*1, D. Reynolds2, J. Bond3, C.

Ferguson4, G. Kruger5, A. Brown-Johnson6; 1Mississippi State University, Micanopy, FL, 2Mississippi State University, Mississippi State,

MS, 3Delta Research and Extension Center,

Stoneville, MS, 4Mississippi State University,

MS State, MS, 5University of Nebraska-Lincoln,

North Platte, NE, 6Mississippi State Chemical

Laboratory, Mississippi State, MS (143)

11:30 †Weed Management and Grain Yield of Six

Soybean (Glycine max) Systems in

Conventional and No-Till. M. C. Geiger*1, J. L.

Matthews2, R. Krausz3, K. Gage2; 1SIU,

Carbondale, IL, 2Southern Illinois University,


Belleville, IL (144)

LOCATION: Arlington Salon V

TIME: 10:00 AM - 12:00 PM


Syngenta

Meridian, ID




36 37



Oral Contest - PhD Students II



Syngenta

Meridian, ID

10:00 †Validation of Standard Water Conditioning

Testing. J. W. Adams*1, R. Zollinger1; 1North

Dakota State University, Fargo, ND (145)

10:15 †Reduced Uptake and Translocation: a

Potential Mechanism for Antagonism Between

Tank-Mixtures of Glyphosate, Glufosinate,

and Dicamba in Echinochloa crus-galli. C.

Meyer*1, J. Norsworthy1, R. S. Beffa2; 1University of Arkansas, Fayetteville, AR, 2Bayer

CropScience, Frankfort / Main, Germany (146)

10:30 †Time of Day Effects on Peanut (arachis

hypogaea) Herbicide Programs. O. Carter*, E.

Prostko; University of Georgia, Tifton, GA (147)

10:45 †A Preliminary Analysis of the Transcriptome

Following 2,4-D Treatment in Susceptible and

Tolerant Red Clover (Trifolium pratense)

Lines. L. Araujo*1, M. Barrett2, L. D. Williams1,

G. L. Olson1, R. D. Dinkins1, T. Bass1; 1University of Kentucky, Lexington, KY, 2Univ

of KY Dept of Plant & Soil Sciences, Lexington,

KY (148)

11:00 †Palmer Amaranth (Amaranthus palmeri)

Control Using Various Droplet Sizes of

Acifluorfen and Lactofen. L. Franca*1, D.

Dodds1, C. Samples1, G. Kruger2, T. Butts2; 1Mississippi State University, Mississippi State,

MS, 2University of Nebraska-Lincoln, North

Platte, NE (149)

11:15 †The Fate of Glyphosate in Roundup Ready

Sugarbeet (Beta vulgaris). A. Barker*, F. E.

Dayan; Colorado State University, Fort Collins,

CO (150)

11:30 †Modelling of Novel Quizalofop-Resistant

ACCase in Wheat. R. Bough*1, C. M.

Hildebrandt1, T. Gaines1, F. E. Dayan1; 1Colorado State University, Fort Collins, CO,

(151)

11:45 †Challenges for Adopting Harvest Weed Seed

Controls in an Organic Wheat (Triticum

aestivum)-Soybean (Glycine max) Rotation. S.

C. Haring*1, M. Flessner2, W. Everman3; 1University of California-Davis, Davis, CA, 2Virginia Tech PPWS Dept., Blacksburg, VA, 3North Carolina State University, Raleigh, NC

(152)

LOCATION: Arlington Salon VI

TIME: 10:00 AM - 12:00 PM


Syngenta

Meridian, ID


Syngenta

Meridian, ID

10:00 Gene Flow of a Herbicide Resistance Trait

from Palmer Amaranth (Amaranthus palmeri)

to Tall Waterhemp (Amaranthus tuberculatus).

N. Steppig*1, H. Nie2, J. Young3, B. Young3; 1Purdue University, Fayetteville, IN, 2Purdue

University, West Lafayette, IN, 3Purdue

University, Brookston, IN (153)

10:15 †Postemergence Herbicide Options for

Common Ragweed (Ambrosia artemisiifolia

L.) Control in Soybeans (Glycine max). S.

Beam*1, M. Flessner2, K. W. Bamber3; 1Virginia

Tech, Concord, NC, 2Virginia Tech PPWS Dept.,

Blacksburg, VA, 3Virginia Tech, Blacksburg, VA

(154)

10:30 †Use of Metam Potassium in Weed Control in

Florida Strawberry. N. Boyd, K. K. Khatri*;

University of Florida, Wimauma, FL (155)

38 39

TUESDAY AFTERNOON JANUARY 30

Oral Contest - MS Students I


10:45 †Interseeded Cover Crops Competitiveness in

Grain Corn (Zea mays). A. Brooker*, K.

Renner, C. Sprague; Michigan State University,

East Lansing, MI (156)

11:00 †Effects of Weed Removal Timing on Shade

Avoidance Responses in Beta vulgaris. A. T.

Adjesiwor*, A. Kniss; University of Wyoming,

Laramie, WY (157)

11:15 †Interactions of Tank-Mix Partners with

Paraquat for Enhanced Grass Control. M.

Hay*, D. Peterson; Kansas State University,

Manhattan, KS (158)

11:30 †Control Options for Toxic Perilla Mint

(Perilla frutescens) in Forage Systems. D.

Russell*1, J. D. Byrd, Jr.1, M. Zaccaro2; 1Mississippi State University, Mississippi State,

MS, 2University of Arkansas, Fayetteville, AR

(159)

11:45 †Increased Absorption of Mesotrione When

Tank-Mixed with Atrazine Contributes to

Improved Control of PS II- and HPPD-

Inhibitor-Resistant Palmer Amaranth

(Amaranthus palmeri). P. Chahal*1, M.

Jugulam2, A. Jhala1; 1University of Nebraska-

Lincoln, Lincoln, NE, 2Kansas State University,

Manhattan, KS (160)


TIME: 1:00 PM - 3:45 PM


Syngenta

Meridian, ID





Syngenta

Meridian, ID

1:00 †Influence of Formulations and Application

Time of Day on Dicamba Air Concentrations

Following Treatment. S. Farrell*1, R. N. Lerch1,

M. Bish2, K. Bradley1; 1University of Missouri,

Columbia, MO, 2Missouri State University,

Columbia, MO (161)

1:15 †Targeted Sequencing of SSR Markers and

ALS-Herbicide Resistance Alleles in Grain

Sorghum (Sorghum bicolor) and Weedy

Relatives. J. Ziggafoos*1, R. Werle2, J.

Lindquist1, A. Jhala1, D. L. Hyten1, M. K.

Yerka4; 1University of Nebraska-Lincoln,

Lincoln, NE, 2University of Nebraska, North

Platte, NE, 4University of Nevada-Reno, Reno,

NV (162)

1:30 †Band Sowing and Cultivation for Weed

Management in Organic Grains. M. R.

McCollough*, E. Gallandt; University of Maine,

Orono, ME (163)

1:45 †Persistence of Dicamba and 2,4-D Herbicide

Residues Following Low-Dose Applications in

Sugarbeet (Beta vulgaris). M. Probst*, C.

Sprague; Michigan State University, East

Lansing, MI (164)

2:00 †Controlling Conyza canadensis with Cover

Crops and Herbicides. A. D. Sherman*1, E.

Haramoto2, J. Green3; 1University of Kentucky,

Humboldt, IL, 2University of Kentucky,

Lexington, KY, 3Univ of KY 413 Plant Science,

Lexington, KY (165)

2:15 †Control of False-Green Kyllinga (Kyllinga

gracillima) with Various Herbicides. K. H.

Diehl*1, M. T. Elmore1, D. P. Tuck1, A. J.

Patton2, J. Carleo3, J. Sawyer3; 1Rutgers

University, New Brunswick, NJ, 2Purdue

University, W Lafayette, IN, 3NJAES, Cape

May, NJ (166)

2:30 †Integration of Residual Herbicides and

Cover Crops for Weed Control in a Soybean

(Glycine max) Production System. D.

Whalen*1, M. Bish2, M. Biggs1, R. N. Lerch1, K.

Bradley1; 1University of Missouri, Columbia,

MO, 2Missouri State University, Columbia, MO

(167)

40 41


Oral Contest - MS Students II


2:45 †Effectiveness of Pre-emergence Applied

HPPD Herbicides on Controlling HPPD-

Resistant Palmer Amaranth (Amaranthus

palmeri). G. J. Gundy*, M. Hay, C. Thompson,

J. Dille; Kansas State University, Manhattan, KS

(168)

3:00 Break

3:15 †Evaluation of Fluridone in Cotton

(Gossypium hirsutum) and Peanut (Arachis

hypogaea). D. Teeter*1, T. A. Baughman1, R.

Peterson2; 1Oklahoma State University, Ardmore,

OK, 2OSU- Institute for Agricultural BioScience,

Ardmore, OK (169)

3:30 †Control of Glyphosate-resistant Waterhemp

(Amaranthus tuberculatus var. rudis) in

Ontario with the Roundup Ready 2 Xtend®

Crop System. B. Hedges*, D. C. Hooker, P.

Sikkema, D. E. Robinson; University of Guelph,

Ridgetown, ON (170)


TIME: 1:00 PM - 3:00 PM


Syngenta

Meridian, ID





Syngenta

Meridian, ID

1:00 †XtendFlex and Enlist Cotton (Gossypium

hirsutum) Weed Management Systems in West

Texas. K. Russell*1, P. Dotray1, W. Keeling2; 1Texas Tech University, Lubbock, TX, 2Texas

A&M AgriLife Research, Lubbock, TX (171)

1:15 Effect of Palmer Amaranth (Amaranthus

palmeri) Density on Yield of Grafted and

Nongrafted Watermelon on Weed Seed

Production. M. Bertucci*1, K. Jennings2, D.

Monks2, D. Jordan2, J. R. Schultheis1, F. J.

Louws1; 1NC State University, Raleigh, NC, 2North Carolina State University, Raleigh, NC

(172)

1:30 †Efficacy of Chemical Control Methods on

Giant Hogweed (Heracleum mantegazzianum).

M. Grguric*1, M. Cowbrough2, F. J. Tardif1; 1University of Guelph, Guelph, ON, 2OMAFRA,

Guelph, ON (173)

1:45 Break

2:00 †Biologically-Effective Dose of Tolpyralate

Applied Post-Emergence for Annual Weed

Control in Corn (Zea mays (L.)). B. Metzger*1,

A. J. Raeder2, D. C. Hooker1, D. E. Robinson1, P.

Sikkema1; 1University of Guelph, Ridgetown,

ON, 2ISK Biosciences Americas, Concord, OH

(174)

2:15 †Effects of Simultaneous Fertilizer and

Preemergence Herbicide Applications on

Nutrient Uptake and Leaching on Tifway 419

Bermudagrass (Cynodon dactylon). L. Oliveira

Ribeiro Maia*1, T. W. Shaddox2, R. Leon3, J. K.

Kruse4; 1University of Florida, Davie, FL, 2University of Florida, Davie, FL, 3University of

Florida, Raleigh, NC, 4University of Florida,

Gainesville, FL (5)

424

43


Oral Contest - PhD Students I


LOCATION: Arlington Salon V

TIME: 1:00 PM - 3:30 PM


Syngenta

Meridian, ID





Syngenta

Meridian, ID

1:00 †Glufosinate-Resistant Italian Ryegrass

(Lolium multiflorum): Involvement of

Herbicide Metabolism and Mobility in the

Mechanism of Resistance. C. Brunharo*1, C.

Mallory-Smith2, B. Hanson1; 1University of

California-Davis, Davis, CA, 2Oregon State

University, Corvallis, OR, (175)

1:15 †Evaluating the Relative Contributions of

Crop Rotation, Tillage, and Herbicide

Diversity for Proactive Herbicide Resistant

Kochia (Kochia scoparia) Management. E. G.

Mosqueda*1, A. Kniss1, P. Jha2, N. C. Lawrence3,

G. M. Sbatella1; 1University of Wyoming,

Laramie, WY, 2Montana State University,

Huntley, MT, 3University of Nebraska-Lincoln,

Pullman, WA (176)

1:30 †FTIR Spectroscopy as a Method for the

Detection and Differentiation of Various

Auxin Herbicide Formulations Found in

Damaged Cotton (Gossypium hirsutum) and

Soybean (Glycine max) Plant Tissue. J. Buol*1,

D. Reynolds1, A. Brown-Johnson2, C. Reid2; 1Mississippi State University, Mississippi State,

MS, 2Mississippi State Chemical Laboratory,

Mississippi State, MS (177)

1:45 †Research Needs for Sustainable Weed

Management in Australian Agriculture. A. M.

Peerzada*1, S. Manalil2, C. C. ODonnell1, S. W.

Adkins2; 1The University of Queensland,

Brisbane, Australia, 2University of Queensland,

Gatton, Australia (178)

2:00 †Determining Genetic Diversity of Glyphosate

Resistant Giant Ragweed (Ambrosia trifida)

Using Molecular Markers. J. Walker*1, T.

Tseng2, D. Reynolds3, D. Shaw3; 1Syngenta,

Starkville, MS, 2Mississippi State University,

Starkville, MS, 3Mississippi State University,


2:15 †Influence of Physical Properties of

Landscape Mulch on Germination of Large

Crabgrass (Digitaria sanguinalis) and Garden

Spurge (Chamaesyce hirta). D. Saha*1, C.

Marble2, G. E. MacDonald3, D. Odero4, B. J.

Pearson5, H. E. Perez3; 1Mid-Florida Research

and Education Center, University of Florida,

Apopka, FL, 2University of Florida, Apopka, FL, 3University of Florida, Gainesville, FL, 4University of Florida, Belle Glade, FL, 5University of Florida - Mid Florida Research

and Education Center, Apopka, FL (180)

2:30 †Relationship Between Glufosinate

Phytotoxicity, Inhibition of Glutamine

Synthetase and Ammonia Accumulation. H. K.

Takano*1, P. Westra1, F. E. Dayan1; 1Colorado

State University, Fort Collins, CO (181)

2:45 †Integrated Weed Management and Herbicide

Resistance Survey of Winter Annual Grasses

in Colorado. N. Soni*1, S. J. Nissen1, P. Westra1,

M. J. Walsh3, J. Norsworthy4, T. Gaines1; 1Colorado State University, Fort Collins, CO, 3University of Sydney, Narrabri, Australia, 4University of Arkansas, Fayetteville, AR, (182)

3:00 Break

444

45


Oral Contest - PhD Students II


3:15 †Are all Auxin Herbicides Created Equal? A

Transcriptome Analysis of the Auxin

Herbicide Response in Horseweed (Conyza

canadensis). C. McCauley*1, B. Young2; 1Purdue

University, Crawfordsville, IN, 2Purdue


LOCATION: Arlington Salon VI

TIME: 1:00 PM - 3:15 PM


Syngenta

Meridian, ID


Syngenta

Meridian, ID

1:00 †Impact of Climate Change on Biology and

Chemistry of An Invasive Weed Species,

Parthenium hysterophorus L. A. A. Bajwa*1, B.

S. Chauhan1, S. W. Adkins1; 1The University of

Queensland, Gatton, Australia (184)

1:15 †Are Pre-Emergence Herbicides Better for

Effective Weed Management in Glyphosate-

Resistant Cotton (Gossypium hirsutum)? N.

Iqbal*1, S. Manalil1, B. S. Chauhan1, S. W.

Adkins1; 1The University of Queensland, Gatton,

Australia (185)

1:30 †Critical Time of Weed Removal in Popcorn

(Zea mays everta) as Influence by Pre-

Emergence Herbicides. E. Barnes*1, S.

Knezevic2, N. C. Lawrence3, S. Irmak1, O.

Rodriguez1, A. Jhala1; 1University of Nebraska-

Lincoln, Lincoln, NE, 2University of Nebraska-

Lincoln, Concord, NE, 3University of Nebraska-

Lincoln, Pullman, WA (186)

1:45 †Sorption and Desorption of Indaziflam,

Imazapic, and Amicarbazone in Soils with

Varying Physical and Chemical Properties. P.

V. Da Silva*1, S. L. Clark2, D. J. Sebastian2, M.

Ortiz2, M. Faletti3, M. Figueiredo2, L. Ma4, P. A.

Monquero5, P. J. Christoffoleti6, S. J. Nissen2; 1Universidade de Sao Paulo/ESALQ, Fort

Collins, CO, 2Colorado State University, Fort

Collins, CO, 3, Saint Louis, MO, 4University of

British Columbia, Vancouver, BC, 5Universidade

Federal de São Carlos, Araras, Brazil, 6University of Sao Paulo, Piracicaba, Brazil (187)

2:00 †Using Historical Data of Miconia calvescens

to Optimize Management and Containment

Across the East Maui Watershed. N. A.

Jorgensen*1, J. Leary2, M. Renz3; 1UW-Madison,

Madison, WI, 2Univ of Hawaii, Kula, HI, 3University of Wisconsin, Madison, WI (188)

2:15 †Impact of Palmer Amaranth (Amaranthus

palmeri) Size on Yield in LibertyLink® Cotton

(Gossypium hirstutum). M. Plumblee*1, D.

Dodds1, S. Garris2, L. Franca1, C. Samples1; 1Mississippi State University, Mississippi State,

MS, 2Bayer CropScience, Bentonia, MS (189)

2:30 †Investigating the Population Genetic

Structure of Glyphosate-Resistant and -

Susceptible Palmer amaranth (Amaranthus

palmeri) Populations. A. Küpper*1, Harish K.

Manmathan2, Darci Giacomini3, Eric L.

Patterson1, William B. McCloskey4, Todd A.

Gaines1 1Department of Bioagricultural Sciences and

Pest Management, Colorado State University, Fort

Collins, CO, 2Department of Soil and Crop Sciences,

Colorado State University, Fort Collins, CO, 3Department of Crop Sciences, University of Illinois,

Urbana, IL ,4School of Plant Sciences, University of

Arizona, Tucson, AZ (190)

2:45 †Three Year Evaluation of Herbicide

Programs in XtendFlexTM Cotton (Gossypium

hirsutum) on Growth, Development, and

Yield. C. Samples*1, D. Dodds1, M. Plumblee1,

L. Franca1; 1Mississippi State University,


46 47



*SPEAKER

3:00 †Reproductive Fitness of Glyphosate-

Resistant and Dicamba-Resistant Kochia

(Kochia scoparia) in the Presence or Absence

of Glyphosate and Dicamba. C. A. Lim*1, P.

Jha1, A. J1, V. Kumar2; 1Montana State

University, Huntley, MT, 2Kansas State

University, Hays, KS (192)


TIME: 10:00 AM - 12:00 PM

CHAIR: Ryan Lins


Rochester, MN

CO-CHAIR: Sandeep Rana

Virginia Polytechnic

Institute and State

University

Blacksburg, VA

MODERATOR: Ryan Lins


Rochester, MN

10:00 Rediscovering a Dormant Molecule. H.

Kraus*1, B. Sievernich2, S. Kevis3, R. L.

Nielson4, S. Kandru5, G. Kraemer6, I. K.

Francis7; 1BASF Corporation, RTP, NC, 2Limburgerhof, Germany, 3BASF plc, Bury St.

Edmunds, England, 4BASF, Limburgerhof

Germany, 5BASF South East Asia Pte. Ltd.,

Singapore, Singapore, 6BASF SE, Limburgerhof,

Germany, 7BASF, Tamworth, Australia (193)

10:15 Making Metribuzin Better with a New

Formulation. G. Dahl*1, R. Edwards2, T.

Hayden3, J. A. Gillilan4, D. M. Brown5, E.

Spandl6, J. Gednalske7, R. L. Pigati6; 1Winfield

United, Eagan, MN, 2WinField United, River

Falls, WI, 3Winfield United, Ames, IA, 4Winfield

United, Springfield, TN, 5Winfield United, River

Falls, WI, 6Winfield United, Shoreview, MN, 7,

River Falls, WI (194)

10:30 Insights on the Mode of Action of a New

Herbicide for Cereals. R. Campe*, J. Hutzler, J.

Lerchl, E. Stauffer, S. Tresch; BASF SE,

Limburgerhof, Germany (195)

10:45 Trifludimoxazin: A Global Perspective on a

Versatile PPO Herbicide. G. R. Armel*1, R. L.

Nielson2, R. A. Liebl1, S. Bowe1, D. S. Hennigh1,

I. K. Francis3, M. D. Oostlander4, R. A. Ramos5; 1BASF, Research Triangle Park, NC, 2BASF,

Limburgerhof, Germany, 3BASF, Tamworth,

Australia, 4BASF, Diamond City, AB, 5BASF,

Sao Paulo, Brazil (196)

11:00 Analysis of Weather and Environmental

Factors Associated with On-Target and Off-

Target Dicamba Applications in 2017. M.

Bish*1, L. Steckel2, P. Sikkema3, D. Peterson4,

W. Johnson5, K. Bradley6; 1Missouri State

University, Columbia, MO, 2University of

Tennessee, Jackson, TN, 3University of Guelph,

Ridgetown, ON, 4Kansas State University,

Manhattan, KS, 5Purdue University, West

Lafayette, IN, 6University of Missouri,

Columbia, MO (197)

11:15 An Update on Roundup Xtend™ Herbicide

with VaporGrip® Technology, Pending

Regulatory Approvals. R. Rector*1, N. Rana2; 1Monsanto Company, St. Louis, MO, 2Monsanto

Company, St Louis, MO (198)

11:30 XtendiMax® Herbicide with VaporGrip®

Technology Update. J. Herrmann*1, S. Allen2, J.

Willis3; 1Monsanto, St. Louis, MO, 2Monsanto

Company, Bonnie, IL, 3Monsanto Company,

Saint Louis, MO (199)


Technology Field Studies. J. Hemminghaus*;

Monsanto, Chesterfield, MO (200)

48 49


Section 5. Wildland and Aquatic Invasive

Plants

*SPEAKER



*SPEAKER


TIME: 10:00 AM - 10:45 PM

CHAIR: Stephen Enloe

University of Florida

Gainesville, FL

CO-CHAIR: Christopher Mudge

US Army Corps of

Engineers

Baton Rouge, LA

MODERATOR: Stephen Enloe

University of Florida

Gainesville, FL

10:00 The Influence of Water Depth on

Torpedograss Control with Herbicides. S.

Enloe*; University of Florida, Gainesville, FL

(201)

10:15 Ensemble Habitat Suitability Modeling for

Invasive Plants: Assessing Model Performance

and Accuracy Across 20 Species in Wisconsin.

N. Jorgensen1, M. Renz*1; 1University of

Wisconsin-Madison, Madison, WI (202)

10:30 Evaluation of UAV Technology for Invasive

Terrestrial and Aquatic Plant Detection and

Mapping. A. Howell1, R. Richardson*2, S.

Hoyle2; 1North Carolina State University,

Sanford, NC, 2North Carolina State University,

Raleigh, NC (203)


TIME: 1:00 PM - 5:00 PM

CHAIR: Ryan Lins


Rochester, MN


Virginia Polytechnic

Institute and State

University

Blacksburg, VA



Rochester, MN


Technology in Roundup Ready® 2 Xtend

Soybean System. A. Barreiro, N. Rana*;

Monsanto Company, St Louis, MO (204)

1:15 Performance of DiFlexx and DiFlexx Duo for

Weed Management in Texas Corn. M.

Matocha*1, S. A. Nolte1, Texas A&M AgriLife

Extension, College Station, TX (205)

1:30 Weed Control with Engenia Herbicide

Systems in XtendFlex Cotton. S. A. Nolte*1, M.

Matocha1; 1Texas A&M AgriLife Extension,

College Station, TX (206)

1:45 A No Observable Effect Level for Dicamba in

Soybean and Cotton. G. Kruger*1, D. Latorre2,

B. Bruss3, C. Sayer4, R. Shaw5; 1University of

Nebraska-Lincoln, North Platte, NE, 2Univeristy

of Nebraska-Lincoln, North Platte, NE, 3Nufarm,

Raleigh, NC, 4Nufarm, Laverton North,

Australia, 5AgriThority LLC, Kansas City, MO

(207)

50 51

2:00 The Effect of Formulation on Dicamba

Volatility as Measured by Low Tunnels. T.

Barber1, A. Culpepper2, G. Kruger3, J.

Norsworthy4, R. Rector5, G. Oakley6, D.

Reynolds*6, R. Scott7, D. Stephenson8, B.

Young9; 1University of Arkansas, Lonoke, AR, 2University of Georgia, Tifton, GA, 3University

of Nebraska-Lincoln, North Platte, NE, 4University of Arkansas, Fayetteville, AR, 5Monsanto Company, St. Louis, MO, 6Mississippi State University, Mississippi State,

MS, 7Univ of Arkansas Coop Extn, Lonoke, AR, 8LSU AgCenter, Baton Rouge, LA, 9Purdue


2:15 Secondary Movement of Xtendimax and

Engenia in Drift Trials: Is this Volatility? J.

Norsworthy*1, T. Barber2, G. Kruger3, D.

Reynolds4, L. Steckel5, B. Young6; 1University of

Arkansas, Fayetteville, AR, 2University of

Arkansas, Lonoke, AR, 3University of Nebraska-

Lincoln, North Platte, NE, 4Mississippi State

University, Mississippi State, MS, 5University of

Tennessee, Jackson, TN, 6Purdue University,

Brookston, IN (209)

2:30 Quantitative Analysis of Sprayer Cleaning

Efficacy Following 2,4-D and Dicamba

Applications. F. B. Browne*, S. Li, K. J. Price;


2:45 Co-Application of Glyphosate with 2,4-D

Accentuates 2,4-D Injury in Glyphosate-

Resistant Corn. P. Sikkema*, N. Soltani;

University of Guelph, Ridgetown, ON (211)

3:00 Break

3:15 New Alternatives for Weed Control Based on

RinskorTM Active Herbicide. M. Morell*1, H.

Perry2, N. Dalla Valle3, N. M. Carranza4, X.

Huang5; 1Dow AgroSciences LLC, Indianapolis,

IN, 2Dow AgroSciences, Leland, MS, 3Dow

AgroSciences, Bologna, Italy, 4Dow

AgroSciences, Ibague, Colombia, 5Dow

AgroSciences, Indianapolis, IN (212)

3:30 Performance of Upland Rice (Oryza sativa. L)

as Affected by Weed Control Treatments,

Poultry Manure and Stand Density. D.

Olarenwaju*1, D. Oliver2, B. Olson3, W. A.

Olson4, K. Omand5, J. Omielan6, R. Ondoua7, S.

Oneto8, A. Orgeron9, J. Orlowski10, L. Ortiz-

Ribbing11, E. Oseland12, G. Osteen13, Z.

Ostojic14, E. Ott15, B. Ottis16; 1Federal University

Dutse Nigeria, Dutse, Niue, 2, Fayetteville, AR, 3Dow AgroSciences LLC, Gothenburg, NE, 4Heartland Technologies Inc, Fishers, IN, 5,

Nantucket, MA, 6University of Kentucky,

Lexington, KY, 7Montana State University,

Conrad, MT, 8, Jackson, CA, 9Louisiana State

University, Baton Rouge, LA, 10Mississippi State

University, Stoneville, MS, 11, Saint Paul, MN, 12University of Missouri, Columbia, MO, 13,

Bakersfield, CA, 14Zagreb, 15Valent USA

Corporation, Greenfield, IN, 16 Houston, TX

(213)

3:45 Increasing Weed Management Options in

Australian Pulse Production. D. Mao*1, S.

Michelmore1, T. Sutton1, J. Paull2, L.

McMurray3, C. Preston4; 1South Australian

Research and Development Institute, South

Australia, Australia, 2University of Adelaide,

South Australia, Australia, 3South Australian

Research and Development Institute, South

Australian, Australia, 4University of Adelaide,

Glen Osmond, Australia (214)

4:00 Herbicide Programs Affecting Palmer

Amaranth Control in Conventional Soybeans.

D. Sarangi*, A. Jhala; University of Nebraska-

Lincoln, Lincoln, NE (215)

4:15 Survey of Palmer Amaranth (Amaranthus

palmeri) Populations from Mississippi and

Arkansas for Resistance to Fomesafen,

Dicamba, and Glufosinate. A. Perez-Jones*1, C.

Wu2, P. Feng3; 1Monsanto, Chesterfield, MO, 2Monsanto Company, Urbana, IL, 3Monsanto

Corporation, Saint Louis, MO (216)

4:30 Precision Agriculture and the Diversity-

Stability Hypothesis. C. Swanton*1, V.

Capmourteres2, M. Anand2, J. Adams2, A. Berg2; 1University of Guelph, Department of Plant

Agriculture, Guelph, ON, 2University of Guelph,

Guelph, ON (217)

52 53


Section 3. Turf and Ornamental Crops

*SPEAKER


Section 4. Pasture, Rangeland, Forest, and

Rights of Way

*SPEAKER

4:45 Role of Crop Competition in Managing

Weeds. B. S. Chauhan*; The University of

Queensland, Gatton, Australia (218)

LOCATION: Grand Salon B

TIME: 3:00 PM - 4:45 PM

CHAIR: Jeffrey Derr

Virginia Tech

Virginia Beach, VA

MODERATOR: Jeffrey Derr

Virginia Tech

Virginia Beach, VA

3:00 Selective Controls for Doveweed (Murdannia

nudiflora). J. Derr*; Virginia Tech, Virginia

Beach, VA (219)

3:15 A Biotype of Annual Bluegrass with Potential

Resistance to PPO-Inhibitors from Georgia. P.

McCullough*1, J. Yu2, M. A. Czarnota3; 1University of Georgia, Griffin, GA, 2Univ. of

Florida, Tampa, FL, 3University of Georgia,

Williamson, GA (220)

3:30 Evaluation of Basamid Regimes for Non-

Selective Bermudagrass Control. T. Gannon, F.

Yelverton, S. Brinton*; North Carolina State

University, Raleigh, NC (221)

3:45 Colonial Bentgrass (Agrostis capillaris) Injury

Following Pre-Emergence Herbicide

Application. M. T. Elmore*1, D. P. Tuck1, B. S.

Park1, J. A. Murphy3; 1Rutgers University, New

Brunswick, NJ (222)

4:00 Seedling Emergence Patterns of Goosegrass

(Eleusine indica) in Turfgrass. D. P. Tuck*, K.

H. Diehl, M. T. Elmore; Rutgers University, New

Brunswick, NJ (223)

4:15 Tolerance of Several Sedum Species to

Postemergence Herbicides. A. Senesac*;

Cornell Cooperative Extension, Riverhead, NY

(224)

4:30 Response of Some Herbaceous Ornamentals to

Two Pre-packaged Herbicide Mixtures. J. S.

Aulakh*1, A. Witcher2; 1The Connecticut

Agricultural Experiment Station, Windsor, CT, 2Tennessee State University, McMinnville, TN

(225)

LOCATION: Grand Salon C

TIME: 1:00 PM - 2:15 PM

CHAIR: David Russell



CO-CHAIR: Joseph Omielan

University of Kentucky

Lexington, KY

MODERATOR: David Russell



1:00 Giant Smutgrass and Bahiagrass Response to

Burning, Grazing Intensity, and Hexazinone

Rate. J. Dias*1, B. Sellers1, J. Ferrell2, S. Enloe2,

J. Vendramini1, P. Moriel1; 1University of

Florida, Ona, FL, 2University of Florida,

Gainesville, FL (226)

1:15 Green Antelopehorn (Asclepias viridis)

Response to Integrated Vegetation

Management Practices. J. D. Byrd, Jr.*, N. H.

Thorne, D. Russell; Mississippi State University,


54 55


Symposium: Herbicide Metabolism in Crops

and Weeds: A Revisit, Current Understanding,

and New Insights

*SPEAKER

1:30 Evaluation of the Seasonal Incidence, Severity

and Forage Nutritive Value of Common Weed

Species in Missouri Pastures. L. S. Shergill*1, Z.

Trower1, M. Bish3, K. Bradley1; 1University of

Missouri, Columbia, MO, 3Missouri State

University, Columbia, MO (228)

1:45 First Year Loblolly Pine Growth Following

Herbaceous Weed Control with Indaziflam,

Sulfometuron, Imazapyr, and Hexazinone. A.

Ezell*1, A. Self2, J. Belcher3; 1Mississippi State

University, Mississippi State, MS, 2Mississippi

State, University, Grenada, MS, 3Bayer Crop

Protection, Auburn, AL (229)

2:00 Crop Tolerance of Loblolly Pine Seedlings to

Applications of Frequency or Cleartraxx

Treatments. A. Ezell*1, A. Self2; 1Mississippi

State University, Mississippi State, MS, 2Mississippi State, University, Grenada, MS (230)

LOCATION: Grand Salon H

TIME: 1:00 PM - 3:30 PM

CHAIR: Vijay Nandula

USDA-ARS

Cleveland, MS

MODERATOR: Vijay Nandula

USDA-ARS

Cleveland, MS

1:00

Herbicide Safener-Regulated Transcripts and

Metabolites reveal Complex Signaling, Defense,

and Detoxification Pathways in Grain Sorghum

Shoots. D. Riechers*1, R. Ma2, Y. Baek1, L.

Goodrich3, A. V. Lygin4, P. J. Brown1; 1University

of Illinois Urbana-Champaign, Urbana,

IL, 2University of Idaho, Moscow, ID, 3University

of Illinois Urbana-Champaign, Savoy,

IL, 4University of Illinois, Urbana, IL (231)

1:15 Metabolism Contributions to Clomazone

Activity and Selectivity. Y. Ferhatoglu1, M.

Barrett*2; 1University of Saskatchewan,

Saskatoon, SK, 2Univ of KY Dept of Plant & Soil

Sciences, Lexington, KY (232)

1:30 Glyphosate Metabolism in Crops and Weeds. S.

Duke*; USDA/ARS/NPURU, Oxford, MS (233)

1:45 Bioactivation of Natural Phytotoxins: The

Exception or the Rule? F. E. Dayan*; Colorado

State University, Fort Collins, CO (234)

2:00 The Regulation of Non-Target Site Herbicide

Resistance in Wild Grasses. R. Edwards*;

Newcastle University, Newcastle, England (235)

2:15 Metabolic Resistance Mechanisms and Genes

in Lolium rigidum. T. Gaines*1, R. Busi2, E.

Patterson3, A. Porri2, Q. Yu2, H. Han2, S.

Iwakami4, S. Gonzalez5, R. S. Beffa6, S.

Powles7; 1Colorado State University, Ft. Collins,

CO, 2University of Western Australia, Crawley,

Australia, 3Colorado State University, Fort Collins,

CO, 4Kyoto University, Kyoto, Japan, 5Bayer

CropScience, Frankfurt am Main,

Germany, 6Bayer CropScience, Frankfort / Main,

Germany, 7, Nedlands, Australia (236)

2:30 Mechanism of Multiple-Herbicide Resistance

in Echinochloa phyllopogon. S. Iwakami*; Kyoto

University, Kyoto, Japan (237)

2:45 Metabolic and Multiple Resistance in

Junglerice. V. Nandula*; USDA-ARS, Cleveland,

MS (238)

3:00 Metabolism-Based Resistance Predisposes

Evolution of Cross Resistance to Herbicides:

Palmer Amaranth - A Classic Example. M.

Jugulam*, S. Nakka, A. Vennapusa, C. Thompson;

Kansas State University, Manhattan, KS (239)

56 57


Section 7. Teaching and Extension

*SPEAKER


Teaching Workshop

*SPEAKER

3:15 Biochemical and Molecular Mechanisms

conferring Metabolic Resistance to Multiple

Herbicides in Amaranthus tuberculatus. R.

Ma*1, A. F. Evans2, S. R. O’Brien2, O. A.

Obenland2, A. V. Lygin2, E. McIndoe3, J. A.

Morris3, S. S. Kaundun3, D. Riechers4; 1University

of Idaho, Moscow, ID, 2University of Illinois,

Urbana, IL, 3Syngenta-UK, Bracknell,

England, 4University of Illinois Urbana-

Champaign, Urbana, IL (240)

LOCATION: Grand Salon J

TIME: 1:00 PM - 3:00 PM

CHAIR: Sandeep Rana

Monsanto Company

Galena, MD

MODERATOR: Sandeep Rana

Monsanto Company

Galena, MD

1:00 WSSA Herbicide Resistance Portal: Helping

End-Users Find Useful Information to Manage

a Serious Problem. M. Horak*1, M. V.

Bagavathiannan2, C. Rouse3, D. Shaw4, R. Leon5; 1Monsanto Company, Saint Louis, MO, 2University of Arkansas, College Station, TX, 3University of Arkansas, Fayetteville, AR, 4Mississippi State University, Mississippi State,

MS, 5North Carolina State University, Raleigh, NC

(241)

1:15 Maleza en Foco: A Herbicide Resistance

Training Program for Argentinian Weed

Managers. C. Rubione*; ClaudioRubione R&D,

Ciudad Autónoma De Buenos Aires, Argentina

(242)

1:30 Weed Science in the Court System: You've been

Subpoenaed, What Now? P. Banks*; Marathon-

Ag & Environ. Consulting, Inc., Arlington, VA

(243)

1:45 WEEDucator: A Digital Tool for Organic Weed

Management Education. S. K. Birthisel*, E.

Gallandt; University of Maine, Orono, ME (244)

2:00 Dicamba Off-Target Injury Issues in Nebraska.

A. Jhala*; University of Nebraska-Lincoln,

Lincoln, NE (245)

2:15 Tools and Techniques to Encourage Student

Engagement: What Works in Weed Science

Lectures? J. Dille*, G. J. Gundy, M. Hay; Kansas

State University, Manhattan, KS (246)

2:30 Weedy Rice in California: Lessons Learned in

Research and Extension. W. B. Brim-Deforest*1,

L. A. Espino2, B. A. Linquist3, M. Leinfelder-

Miles4, R. G. Mutters5, K. Al-Khatib6; 1University

of California Cooperative Extension, Yuba City,

CA, 2University of California Cooperative

Extension, Colusa, CA, 3University of California,

Davis, Davis, CA, 4University of California

Cooperative Extension, Stockton, CA, 5University

of California Cooperative Extension, Oroville, CA, 6University of California-Davis, Davis, CA (247)


TIME: 3:00 PM - 5:00 PM

CHAIR: Tom Mueller


Knoxville, TN

MODERATOR: Tom Mueller


Knoxville, TN

3:00 Virtual Reality in Weed Science Education. T.

Tseng*; Mississippi State University, Starkville,

MS (248)

58 59

WEDNESDAY MORNING JANUARY 31


*SPEAKER


Section 13. Integrated Weed Management

*SPEAKER

3:30 Discussions Toward a WSSA Online Textbook.

T. Mueller*; University of Tennessee, Knoxville,

TN (249)

4:00 Plagiarism in Higher Education Today. T.

Mueller*; University of Tennessee, Knoxville, TN

(250)

LOCATION: Arlington Salon III

TIME: 10:00 AM - 12:00 PM

CHAIR: Ryan Lins


Rochester, MN


Virginia Polytechnic Institute

and State University

Blacksburg, VA



Rochester, MN

10:00 Cover Crops Mediate Weed - Corn

Competition. B. Baraibar*1, D. Mortensen2; 1Penn

State University, State College, PA, 2Penn State


10:15 Advances in Broadleaf Weed Management in

Red and White Clovers Grown for Seed in

Oregon. A. G. Hulting*, K. Roerig, D. W. Curtis,

C. Mallory-Smith; Oregon State University,

Corvallis, OR (252)

10:30 Targeting Seed Production of Herbicide

Resistant Wild Mustard in Lentil with Weed

Wiper Herbicide Application. L. D. Syrovy*1, S.

J. Shirtliffe1, E. Johnson2, C. J. Willenborg1; 1University of Saskatchewan, Saskatoon, SK, 2College of Agriculture and Bioresources,

University of Saskatchewan, Saskatoon, SK (253)

10:45 Enhanced Tolerance of Common

Lambsquarters (Chenopodium album) to

Glyphosate in Corn-Sugar Beet Rotations in the

Western U.S. V. Kumar*1, P. Jha2, D. W.

Morishita3, R. Yadav4, A. J2, C. A. Lim2; 1Kansas

State University, Hays, KS, 2Montana State

University, Huntley, MT, 3University of Idaho,

Kimberly, ID, 4Montana State University, Huntley,

MT (254)

11:00 Effect of Elevated CO2 Levels and Increased

Temperatures on Glyphosate Efficacy. M.

Matzrafi*, C. Fautt, M. Jasieniuk; University of

California-Davis, Davis, CA (255)

11:15 Cultivation and Reduced-Rate Herbicides for

Cost-Effective Weed Control in Sugarbeet

Grown for Biofuel. W. C. Johnson III*1, T. M.

Webster1, T. Grey2; 1USDA-ARS, Tifton, GA, 2University of Georgia, Tifton, GA (256)

11:30 A New Brake Herbicide for Weed Control in

Cotton. K. Briscoe*; SePRO Corporation, Rocky

Mount, NC (257)

11:45 Evaluation of 2,4-D and Dicamba Residual

Effect on Cotton Establishment and Yield. K. J.

Price*, S. Li; Auburn University, Auburn, AL

(258)


TIME: 10:00 AM - 12:00 PM

CHAIR: Daniela Ribeiro

Monsanto Company

Leland, MS

CO-CHAIR: Harry Strek

Bayer Crop Science

Leverkusen, Germany

MODERATOR: Daniela Ribeiro

Monsanto Company

Leland, MS

60 61


Symposium: Pesticide Registration in the U.S.

and How the WSSA Can Inform the Process

*SPEAKER

10:00 Cereal Rye Management Affects Weed Control

in Soybeans. M. J. VanGessel*, Q. Johnson, B.

Scott, K. Vollmer; University of Delaware,

Georgetown, DE (259)

10:15 Farmer Attitudes Toward Cooperative

Approaches to Herbicide Resistance

Management. D. E. Ervin*1, E. Breshears2, G.

Frisvold3, K. Dentzman4, W. Everman5, J.

Gunsolus6, T. Hurley7, R. Jussaume8, J.

Norsworthy9, M. Owen10; 1Portland State

University, Portland, OR, 2Michigan State U., East

Lansing, MI, 3University of Arizona, Tucson, AZ, 4Washington State U., Pullman, WA, 5North

Carolina State University, Raleigh, NC, 6University of Minnesota, Saint Paul, MN, 7U.

Minnesota, Minneapolis, MN, 8Michigan State U.,

East Lansing, MI, 9University of Arkansas,

Fayetteville, AR, 10Iowa State University, Ames,

IA (260)

10:30 Do Growers Manage Weeds on Owned and

Rented Land Differently? Evidence from U.S.

Corn and Soybean Farms. G. Frisvold*1, J.

Albright2, K. Dentzman3, D. E. Ervin4, T. Hurley5,

R. Jussaume6, J. Norsworthy7, M. Owen8, W.

Everman9, J. Gunsolus10; 1University of Arizona,

Tucson, AZ, 2Allstate Insurance, Naperville, IL, 3Washington State U., Pullman, WA, 4Portland

State University, Portland, OR, 5U. Minnesota,

Minneapolis, MN, 6Michigan State U., East

Lansing, MI, 7University of Arkansas,

Fayetteville, AR, 8Iowa State University, Ames,

IA, 9North Carolina State University, Raleigh, NC, 10University of Minnesota, SAINT PAUL, MN

(261)

10:45 Applying Machine Learning to "Big Data" to

Refine Weed Management: A Case Study in

Cranberry. J. Colquhoun*, Y. Saikai, F. Dong, P.

Mitchell; University of Wisconsin, Madison, WI

(262)

11:00 Dose, pattern and targeted tissue of irradiation

affect weed seedling response to laser. C. Hu*1,

F. Michel1, D. Doohan1; 1The Ohio State

University, Wooster, OH, (263)

11:15 3-D Image Driven Morphological Crop

Analysis - A Novel Method for Detection of

Broomrape Initial Subsoil Parasitism. R. N.

Lati*1, S. Filin2, H. Eizenberg1; 1Agricultural

Research Organization, Newe Ya’ar Research

Center, Ramat Yishay, Israel, 2Technion – Israel

Institute of Technology, Haifa, Israel (264)

11:30 Sensor-Based Approach for Weed Species

Detection and Differentiation for Precision

Agriculture. V. Singh*, A. Prosvirin, N. Rajan, J.

Higby, A. Filippi, M. Bishop, M. Bagavathiannan;

Texas A&M University, College Station, TX (265)

11:45 Integrating Decision Making Processes into

Cranberry Weed Management: Dodder as a

Case Study. H. A. Sandler*, K. M. Ghantous;

UMass Cranberry Station, East Wareham, MA

(266)


TIME: 10:00 AM - 12:00 PM

CHAIR: Michael Barrett


Department of Plant & Soil

Sciences

Lexington, KY

CO-CHAIR: William J Chism

US Environmental Protection

Agency

Point of Rocks, MD

MODERATOR: William J Chism


Agency

Point of Rocks, MD

62 63

WEDNESDAY AFTERNOON JANUARY 31


*SPEAKER

10:00 Introduction to the Symposium and an EPA-

OPP Overview of Pesticide Laws – FIFRA,

FFDCA, FQPA, and PRIA plus the Definition

of a Pesticide. R. P. Keigwin, Jr.*1, W. J. Chism2,

M. Barrett3; 1Environmemtal Protection Agency -

Office of Pesticide Programs, Arlington, VA, 2US

Environmental Protection Agency, Point of Rocks,

MD, 3University of Kentucky Department of Plant

& Soil Sciences, Lexington, KY (267)

10:15 Biotechnology in the Office of Pesticide

Programs. E. Milewski*; Environmental

Protection Agency - Office of Pesticide Programs,

Arlington, VA (268)

10:45 The Registration Program: New Active

Ingredients, New Uses of Registered Herbicides,

Emergency Exemptions (FIFRA Section 18s),

and Other Registration Actions. D. Kenny*; US

EPA, Washington, DC (269)

11:00 The Registration Review Program: Data

Needed to Support Re-evaluations Under the

Registration Review Program. B. Smith*;

Environmental Protection Agency - Office of

Pesticide Programs, Arlington, VA (270)

11:15 Overview of Risk Assessments: Human Health.

M. Metzger*; Environmental Protection Agency -

Office of Pesticide Programs, Arlington, VA (271)

11:30 Overview of Risk Assessments: Ecological Risk.

S. Sankula*; Environmental Protection Agency -

Office of Pesticide Programs, Arlington, VA (272)

11:45 Overview of Risk Assessments: Endangered

Species. B. Anderson*; Environmental Protection

Agency - Office of Pesticide Programs, Arlington,

VA (273)

LOCATION: Arlington Salon III

TIME: 1:00 PM - 2:00 PM

CHAIR: Ryan Lins


Rochester, MN


Virginia Polytechnic Institute

and State University

Blacksburg, VA



Rochester, MN

1:00 Evaluation of Elevore™ on Glyphosate-

Resistant Horseweed in Tennessee. J.

Copeland*1, L. Steckel1, B. Haygood2, J. Ellis3; 1University of Tennessee, Jackson, TN, 2,

Collierville, TN, 3Dow AgroSciences, Sterlington,

LA (274)

1:15 Harness MAX Herbicide: A New Product for

Weed Management in Corn. E. Riley*1, G.

Elmore2, R. Montgomery3; 1Monsanto, Saint

Louis, MO, 2Monsanto Company, Saint Louis,

MO, 3Monsanto Company, Union City, TN (275)

1:30 Broadleaf and Grass Weed Control with

Tolpyralate in US Corn. A. J. Raeder*1, H.

Kikugawa2, H. Okamoto2, M. Parks1, D. Tonks1; 1ISK Biosciences Americas, Concord, OH, 2ISK

Biosciences, Osaka, Japan (276)

1:45 HPPD plus Growth Regulator Herbicides for

Control of Divine Nightshade in Ratoon

Sugarcane. D. J. Spaunhorst*1, A. Orgeron2; 1USDA-ARS, Houma, LA, 2Louisiana State

University, Baton Rouge, LA (277)

64 65


Symposium: Sustainable Programs to Improve

Pesticide Applications and Promote Resistance

Management

*SPEAKER

Section 10. Biocontrol of Weeds

*SPEAKER

LOCATION: Arlington Salon V & VI

TIME: 1:00 PM - 5:00 PM

CHAIR: A. S. Culpepper

University of Georgia

Tifton, GA

MODERATOR: A. S. Culpepper

University of Georgia

Tifton, GA

1:00 Introduction. Rick Keigwin; U.S. EPA Office of

Pesticide Programs

1:05 Synergy - Practical vs. Academic. B. Young*;

Purdue University, Brookston, IN (278)

1:25 Tank Mixtures Improve Weed Control and

Reduce Herbicide Resistance - Midwest. C.

Sprague*; Michigan State University, East

Lansing, MI (279)

1:45 Opportunities for Tank Mix and Sequential

Herbicide Programs for Season-Long

Management of Weeds in Western Tree and

Vine Cropping Systems. B. Hanson*1, C.

Brunharo2, L. M. Sosnoskie1, M. Moretti2; 1University of California-Davis, Davis, CA, 2Oregon State, Corvallis, OR (280)

2:05 Tank Mixtures Improve Weed Control and

Reduce Herbicide Resistance - South. A.

Culpepper*1, A. York2; 1University of Georgia,

Tifton, GA, 2North Carolina State University,

Cary, NC (281)

2:25 On Target: Equipment Technology to Reduce

Drift. M. Anderson*; AEM Sprayer Leadership

Group, East Berlin, PA (282)

2:45 Improving On-Target Aerial Pesticide

Applications. S. Bretthauer*; National

Agricultural Aviation Association, Alexandria, VA

(283)

3:05 Break

3:15 USDA's Role in Helping Growers Manage

Herbicide Resistance. J. Schroeder*1, S. Able2, S.

Koehler2; 1USDA Office of Pest Management

Policy, Arlington, VA, 2USDA, Washington, DC

(284)

3:35 Restrictions and Regulations are Overwhelming

at the Farm Level - Developing a More Friendly

Approach. L. Steckel*; University of Tennessee,

Jackson, TN (285)

3:55 Dicamba Update - 2017 Season. R. Baris*; U.S.

EPA, Washington, DC (286)

4:15 How can EPA, WSSA, and Industry work

together to Foster New Herbicide MOA

Development? W. Miller*; U.S. EPA,

Washington, DC (287)

4:35 Cooperative Efforts of Academics, Industry,

Growers, and the U.S. EPA are Critical for

Managing Off-Target Pesticide Movement and

Managing Herbicide Resistance. R. Keigwin*;

U.S. EPA, Washington, DC (288)


TIME: 1:00 PM - 1:45 PM

CHAIR: Clyde Boyette

USDA/ARS

Stoneville, MS

CO-CHAIR: Min Rayamajhi

USDA

Fort Lauderdale, FL

MODERATOR: Clyde Boyette

USDA/ARS

Stoneville, MS

66 67


Symposium: Pesticide Registration in the U.S.

and How the WSSA Can Inform the Process

*SPEAKER


Symposium: Grade Report for New Dicamba

Technology in 2017

*SPEAKER

1:00 Performance of Orseolia javanica (Diptera:

Cecidomyiidae), a Candidate Biological

Control Agent, on Two Florida Biotypes of

Cogongrass, Imperata cylindrica. J. P. Cuda*1, P.

Hidayat2, K. Simamora2; 1University of Florida,

Gainesville, FL, 2Bogor Agricultural University,

Bogor, Malaysia (289)

1:15 A Review of Winter Annual Invasive Grass

Biocontrol. D. R. Tekiela*; Virginia Tech,

Laramie, WY (290)

1:30 Suppression of Air Potato Vine Infestations in

Florida and Beyond by Using Biological

Control Agent Lilioceris cheni. M. Rayamajhi*1,

P. D. Pratt2, E. Rohrig3, P. W. Tipping1, C. Kerr3; 1USDA, Fort Lauderdale, FL, 2USDA, Albany,

CA, 3Florida Department of Agriculture,

Gainesville, FL (291)


TIME: 1:00 PM - 2:00 PM

CHAIR: Michael Barrett


Department of Plant & Soil

Sciences

Lexington, KY

CO-CHAIR: William J Chism


Agency

Point of Rocks, MD

MODERATOR: William J Chism


Agency

Point of Rocks, MD

1:00 Benefits/Impact Analyses: Herbicide Risk

Management Case Studies - Paraquat and

Enlist Duo. W. J. Chism*1, T. Wyatt2; 1US

Environmental Protection Agency, Point of Rocks,

MD, 2Enivronmental Protection Agency - Office

of Pesticide Programs, Arlington, VA (292)

1:15 Information needs for the EPA-Office of

Pesticide Programs. T. Kiely*; Environmental

Protection Agency - Office of Pesticide Programs,

Arlington, VA (293)

1:30 How can the EPA and WSSA Improve

Information Transfer to Users? M. Barrett*;

University of Kentucky, Department of Plant &

Soil Sciences, Lexington, KY (294)

1:45 Questions and Answers

LOCATION: Arlington Salon I & II

TIME: 1:55 PM - 5:00 PM

CHAIR: Gregory Dahl

Winfield United

Eagan, MN

MODERATOR: Gregory Dahl

Winfield United

Eagan, MN

1:55 Setting the Stage. G. Dahl*; Winfield United,

Eagan, MN (295)

2:00 U. S. Environmental Protection Agency

Considerations. G. Dahl*; Winfield United,

Eagan, MN (296)

2:15 Drift and Getting Droplet Size Right. G.

Kruger*; University of Nebraska-Lincoln, North

Platte, NE (297)

68 69



2:30 Monsanto Considerations. R. Rector*; Monsanto

Company, St. Louis, MO (298)

2:45 Engenia Herbicide Stewardship for 2018. C.

Asmus*; BASF Corporation, Research Triangle

Park, NC (299)

3:00 Break

3:15 Distributor Considerations. L. C. Magidow*1, E.

Spandl2, R. L. Pigati3; 1Winfield United,

Maplewood, MN, 2Winfield United, Shoreview,

MN, 3WinField United, Shoreview, MN (300)

3:30 Dealer/Applicator Considerations. G. Dahl*;

Winfield United, Eagan, MN (301)

3:45 Mid-West Extension Weed Specialist Concerns.

R. Zollinger*; North Dakota State University,

Fargo, ND (302)

4:00 Southern Extension Weeds Specialist

Concerns. L. Steckel*; University of Tennessee,

Jackson, TN (303)

4:15 State Regulator Considerations. G. Dahl*;

Winfield United, Eagan, MN (304)

4:30 Dicamba Considerations and Concerns of the

Specialty Crop Industry. S. Smith*; Red Gold,

Inc., Elwood, IN (305)

4:45 Dicamba, a Resource and a Challenge for the

Cotton Industry. R. Nichols*; Cotton

Incorporated, Cay, NC (306)

5:00 Questions and Answers. G. Dahl*; Winfield

United, Eagan, MN (307)


TIME: 10:00 AM - 12:00 PM

CHAIR: Dan Tekiela

Virginia Tech

Laramie, WY

CO-CHAIR: Vijay Singh

Texas A&M University

College Station, TX

MODERATOR: Dan Tekiela

Virginia Tech

*SPEAKER Laramie, WY

10:00 A Demographic Role for Hybridization in Plant

Invasions. M. B. Mesgaran*1, M. Lewis2, P.

Addes3, K. Danohue4, S. Ohadi5, C. Li3, R. D.

Cousens3; 1University of California-Davis, Davis,

CA, 2University of Alberta, Edmonton, AB, 3University of Melbourne, Melbourne, Australia, 4Duke University, Durham, NC, 5Texas A&M

University, College Station, TX (308)

10:15 Regional Responses to Drought on the Growth

and Fitness of Microstegium vimineum (Trin.)

A. Camus (Japanese Stiltgrass). C. Huebner*1,

N. Waterland2; 1Northern Research Station, US

Forest Service USDA, Morgantown, WV, 2West

Virginia University, Morgantown, WV (309)

10:30 Growth Phenology, Physiological and

Biochemical Responses of Two Australian

Biotypes of African Turnip (Sisymbrium

thellungii L.) to Varied Soil Moisture Regimes.

G. Mahajan*1, B. George-Jaeggli2, M. J. Walsh3,

B. S. Chauhan1; 1University of Queensland,

Gatton, Australia, 2University of Queensland,

Warwick-4370, Australia, 3University of Sydney,

Narrabri, Australia (310)

10:45 Could Recent Increases in Atmospheric Carbon

Dioxide Act as a Selection Factor in Wild Oat

Populations? A Case Study. L. H. Ziska*;

USDA-ARS, Beltsville, MD (311)

11:00 Sicklepod Extract as an Effective Deer

Repellent: Field Data. Z. Yue*, T. Tseng, M.

Lashley, S. Shrestha, G. Captu; Mississippi State

University, Starkville, MS (312)

70 71



*SPEAKER

11:15 Root Foraging Strategies of Maize and Four

Common Agricultural Weeds: Implications for

Belowground Competition. C. J. Lowry*1, M. R.

Ryan2, R. G. Smith3; 1Postdoc- University of New

Hampshire, Durham, NH, 2Cornell University,

Ithaca, NY, 3University of New Hampshire,

Durham, NH (313)

11:30 Life-Cycle Analysis and Fitness Characteristics

of Glyphosate Susceptible and Resistant

Common Ragweed (Ambrosia artemisiifolia L.).

J. Bae*1, R. E. Nurse2, E. R. Page2; 1Agriculture

and Agri-Food Canada, Harrow, BC, 2Agriculture

and Agri-Food Canada, Harrow, ON (314)

11:45 Distribution and Frequency of Herbicide-

Resistant Italian Ryegrass Populations in the

Central Valley of California. P. Tehranchian*1, I.

M. Heap2, T. Deveaud3, M. Matzrafi4, M.

Jasieniuk1; 1University of California-Davis,Davis,

CA, 2WeedSmart, Corvallis, OR, 3AgroParis Tech,

Paris, France (315)


TIME: 1:00 PM - 5:00 PM

CHAIR: Dan Tekiela

Virginia Tech

Laramie, WY

CO-CHAIR: Vijay Singh

Texas A&M University

College Station, TX

MODERATOR: Dan Tekiela

Virginia Tech

Laramie, WY

1:00 Genomewide Characterization of California

Weedy Red Rice Reveals Multiple Possible

Origins. T. B. De Leon*1, C. Andaya2, V.

Andaya2, K. B. McKenzie2, K. Al-Khatib1, L. A.

Espino4, T. Blank5, R. G. Mutters6, M. Leinfelder-

Miles7, B. A. Linquist1, W. B. Brim-Deforest8; 1University of California-Davis, Davis, CA, 2California Rice Experiment Station, Biggs, CA, 4University of California Cooperative Extension,

Colusa, CA, 5California Crop Improvement

Association, Davis, CA, 6University of California

Cooperative Extension, Oroville, CA, 7University

of California Cooperative Extension, Stockton,

CA, 8University of California Cooperative

Extension, Yuba City, CA (316)

1:15 Elucidating the Differential Physiological

Responses to Glyphosate in Palmer Amaranth

Biotypes with Varying Resistance to

Glyphosate. A. S. Maroli*1, V. Nandula2, N.

Tharayil1; 1Clemson University, Clemson, SC, 2USDA-ARS, Cleveland, MS (317)

1:30 One in a Million? Empirical Determination of

Mutation Frequency for Herbicide Resistance.

F. Casale1, P. Tranel*2; 1University of Illinois,

Urbana, IL, 2University of Illinois, Urbana, IL

(318)

1:45 QST-FST Genetic Analysis Confirms Evolution

of Adaptive Traits in Palmer Amaranth

(Amaranthus palmeri). R. Leon*1, R. van der

Laat2, W. Bravo3, J. Ferrell3; 1North Carolina State

University, Raleigh, NC, 2University of Florida,

Jay, FL, 3University of Florida, Gainesville, FL

(319)

2:00 Applied Transcriptomics- Our Journey in

Utilizing Transcriptomic Data for Weed

Science Research. C. Rouse*, N. R. Burgos;

University of Arkansas, Fayetteville, AR (320)

2:15 Crop Characteristics and Weed Interactions of

Diverse Recurrent Inbred Lines (RILs) from a

Weed-Suppressive x Non-Suppressive Rice

Mapping Population. D. Gealy*; USDA ARS

DBNRRC, Stuttgart, AR (321)

2:30 Weeds of the DMV. P. Banks*; Marathon-Ag &

Environ. Consulting, Inc., Arlington, VA (322)

72 73


WSSA Business Meeting

*SPEAKER

THURSDAY MORNING FEBRUARY 1

Section 6. Regulatory Aspects

*SPEAKER

2:45 The Effect of 48 Years of Tillage and Fertility

Treatments on Weed Communities. K. Gage*1,

R. Krausz2; 1Southern Illinois University,


Belleville, IL (323)

3:00 Break

3:15 Fate of Weed Seed in Compost During

Commercial Mushroom Production. K.

Vollmer*, M. J. VanGessel; University of

Delaware, Georgetown, DE (324)

3:30 Seed Germination Ecology and its resistance of

Catchweed Bedstraw (Galium aparine L.). H.

Wang*, Y. Lou; Institute of Plant Protection,

Nanjing, Peoples Republic of China (325)

3:45 The Impact of Germination Phenology and

Seed Set on the Potential Weediness of Hairy

Vetch (Vicia villosa). K. B. Pittman*1, M.

Flessner2, J. Barney1, C. Cahoon3; 1Virginia Tech,

Blacksburg, VA, 2Virginia Tech PPWS Dept.,

Blacksburg, VA, 3Eastern Shore ARC Virginia

Tech, Painter, VA (326)

4:00 Ecological Approaches to Manage Kochia Seed

Bank in Irrigated Western Cropping Systems.

P. Jha*1, A. Kniss2, G. M. Sbatella2, N. C.

Lawrence3, R. Yadav1; 1Montana State University,

Huntley, MT, 2University of Wyoming, Laramie,

WY, 3University of Nebraska-Lincoln, Pullman,

WA (327)

4:15 Germination and Emergence of Black Medic in

Response to Constant and Fluctuating

Temperatures, Osmotic Potential and Burial

Depth. S. M. Sharpe*, N. Boyd; University of

Florida, Wimauma, FL (328)

4:30 Modification of Weed Seed Germination and

Seedling Growth with Fermentation Residuals

from Bioethanol Production. R. Leon*1, R. van

der Laat2; 1North Carolina State University,

Raleigh, NC, 2University of Florida, Jay, FL (329)


TIME: 5:15 PM - 6:45 PM

CHAIR: Janis McFarland


Greensboro, NC

MODERATOR: Janis McFarland


Greensboro, NC


TIME: 8:00 AM - 9:45 AM

CHAIR: Cherilyn Moore

Syngenta Crop Protection,

LLC

Greensboro, NC

MODERATOR: Cherilyn Moore

Syngenta Crop Protection,

LLC

Greensboro, NC

8:00 An Overview of the New EPA Mandated

Requirements for Paraquat Containing

Products: What Does That Mean for the End-

User and Registrant? M. U. Dixon*; Syngenta

Crop Protection, LLC, Greensboro, NC (330)

74 75



*SPEAKER

8:15 Taking Advantage of Global Field Trial

Exchangeability and Crop Grouping for

Pesticide Residue Studies. D. Kunkel*1, J. J.

Baron2, W. P. Barney2; 1Rutgers University,

Princeton, NJ, 2Rutgers University, IR-4 Project,

Princeton, NJ (331)

8:30 Pollinator Habitats - Weeds & Management

Challenges. C. Savinelli*1, D. Campbell1, J.

McFarland1, C. Moseley1; 1Syngenta Crop

Protection, Greensboro, NC (332)

8:45 Importance of Atrazine in Weed Management

and Best Management Practices. C. Moseley*1,

D. Bridges2, P. Mitchell3, P. Laird4, G. Hill1; 1Syngenta Crop Protection, Greensboro, NC, 2Abraham Baldwin Agricultural College, Tifton,

GA, 3University of Wisconsin, Madison, WI, (333)

9:00 Atrazine - Stewardship and Water Monitoring -

a Watershed Approach. M. White*1, W. Chen2; 1Syngenta Crop Protection, LLC, Macon, MO, 2Syngenta Crop Protection, LLC, Greensboro, NC

(334)

9:15 Piloting a Voluntary Conservation Approach in

Mississippi to Improve the Endangered Species

Act Pesticide Regulatory Process. B. Sacher*1,

D. Campbell1, T. Huggins2, T. Cook2; 1Syngenta

Crop Protection, LLC, Greensboro, NC, 2Delta

Wildlife, Greenville, MS (335)

9:30 Piloting a Voluntary Conservation Approach in

Iowa to Improve the Endangered Species Act

Pesticide Regulatory Process. D. Campbell*1, B.

Sacher1, K. Kult2, R. Wolf2; 1Syngenta Crop

Protection, LLC, Greensboro, NC, 2Iowa Soybean

Association, Des Moines, IA (336)

LOCATION: Grand Salon G & F

TIME: 8:00 AM - 12:00 PM

CHAIR: Jayesh Samtani

Virginia Tech. University

Virginia Beach, VA

CO-CHAIR: Katherine Jennings

North Carolina State University

Raleigh, NC

MODERATOR: Jayesh Samtani

Virginia Tech. University

Virginia Beach, VA

8:00 Precision Application Technology for Weed

Management in Plasticulture Vegetable

Production. N. Boyd*1, A. Schumann2; 1University of Florida, Wimauma, FL, 2University

of Florida, Lake Alfred, FL (337)

8:15 Application of Dimethenamid-p Through Drip

Irrigation Lines Controls Yellow Nutsedge in

Direct-seeded Onion. J. Felix*, J. Ishida; Oregon

State University, Ontario, OR (338)

8:30 The Final Word in Onion Weed Control. B.

Zandstra*, C. Phillippo; Michigan State

University, East Lansing, MI (339)

8:45 Potato Weed Management: Active Ingredients

Exhibiting Potential for the Future. D. Heider*,

J. Colquhoun, R. A. Rittmeyer; University of

Wisconsin, Madison, WI (340)

9:00 Chipping Potato Response to Sublethal Doses of

Glyphosate and/or Dicamba. H. Hatterman-

Valenti*1, J. E. Stenger1, C. P. Auwarter2; 1North

Dakota State University, Fargo, ND, (341)

76 77



*SPEAKER

9:15 Effect of Simulated Rice Herbicide Drift on

English Walnut (Juglans regia) Growth and

Development. M. F. Galla*1, K. Al-Khatib2, B.

Hanson2; 1UCCE, Orland, CA, 2University of

California-Davis, Davis, CA (342)

9:30 Evaluation of Pre- and Post-emergence

Herbicides for Carolina Redroot Control in

New Jersey Cranberry Bogs. T. E. Besancon*;

Rutgers University, Chatsworth, NJ (343)

9:45 Comparison of Alternative Weed Management

Strategies with Four Interspecific Grape

Cultivars. J. E. Stenger1, H. Hatterman-Valenti*1,

C. P. Auwarter1; 1North Dakota State University,

Fargo, ND (344)

10:00 Break

10:15 An Alternative Approach to Preplant

Fumigation with Paper Pellet and Mustard

Seed Meal in Annual Strawberry Production. J.

Samtani*, S. Das; Virginia Tech. University,

Virginia Beach, VA (345)

10:30 Evaluation of Multiple Rates of Paladin EC and

Paladin Pic-21 EC for Weed Control in Florida

Tomato. J. Yu*1, N. Boyd2; 1Univ. of Florida,

Tampa, FL, 2University of Florida, Wimauma, FL

(346)

10:45 Rye Mulch has Potential for Weed

Management in Edamame. L. Crawford1, M. M.

Williams*2, S. E. Wortman3; 1University of

Illinois, Urbana, IL, 2USDA-ARS, Urbana, IL, 3University of Nebraska-Lincoln, Urbana, IL (347)

11:00 Weed Management in Lettuce on Organic Soils

in Florida. D. Odero*1, A. L. Wright2; 1University

of Florida, Belle Glade, FL, 2University of Florida,

Fort Pierce, FL (348)

11:15 Using Living Mulch and Strip Tillage to

Suppress Weeds in Organic Vegetables. A. W.

Leslie*, C. R. Hooks; University of Maryland,

College Park, MD (349)

11:30 Integrated Weed Management Strategies with

Rye Mulch in Processing Vegetable Legumes.

Y. Kitis*1, M. M. Williams2, N. Hausman2, J.

Moody3; 1Akdeniz University, Antalya, Turkey, 2USDA-ARS, Urbana, IL, 3University of Illinois,

Urbana, IL (350)

11:45 Integrated Vegetable Weed Management with

Bicyclopyrone. C. Phillippo*, B. Zandstra;

Michigan State University, East Lansing, MI (351)


TIME: 8:00 AM - 12:00 PM

CHAIR: Christopher Van Horn

USDA

Parlier, CA

CO-CHAIR: Christopher Rouse

University of Arkansas

Fayetteville, AR

MODERATOR: Christopher Van Horn

USDA

Parlier, CA

8:00 Field Evaluation of the Potential Herbicide

Tolerant Tomato Screened from Diverse

Germplasm. G. Sharma*1, C. Barickman1, R.

Snyder1, T. Tseng1; 1Mississippi State

University, Starkville, MS (352)

8:15 Characterizing the Tolerance Mechanism of

Rice Cultivars to the HPPD-inhibitor

Benzobicyclon. C. Brabham*1, V. Varanasi1, J.

Norsworthy1, C. Sandoski2; 1University of

Arkansas, Fayetteville, AR, 2Collierville, TN

(353)

78 79

8:30 Study on Sensitivity of Different Leaf Age of

Barnyardgrass to Bispyribac-sodium and

Cyhalofop-butyl. X. Liu*, Y. Deng, J. li, C.

Jin; Hunan University of Humanities, Science

and Technology, Loudi, Peoples Republic of

China (354)

8:45 Multiple Resistance to Glyphosate,

Paraquat, ACCase- and ALS-inhibitors in

California Italian Ryegrass: Confirmation,

Control and Resistance Mechanisms. P.

Tehranchian*1, V. Nandula2, M. Jugulam3, M.

Jasieniuk1; 1University of California-Davis,

Davis, CA, 2USDA-ARS, Cleveland,

MS, 3Kansas State University, Manhattan, KS

(355)

9:00 Non-Target Site Resistance to Flucarbazone,

Imazamethabenz, and Pinoxaden is

Controlled by Three Linked Genes in Avena

fatua. E. E. Burns*1, B. K. Keith2, L. E.

Talbert2, W. E. Dyer2; 1Michigan State

University, East Lansing, MI, 2Montana State

University, Bozeman, MT (356)

9:15 Differential Synthetic Auxin Binding to

TIR1 and AFB5 and Comparative

Downstream Perception of 2,4-D and

Florpyrauxifen-benzyl in Arabidopsis

thaliana. P. R. Schmitzer*1, J. L. Bell2, J.

Prusinska3, R. Napier3, D. Riar1, M. Donahue1,

N. Elango1; 1Dow AgroSciences LLC,

Indianapolis, IN, 2Dow AgroSciences,

Brownsburg, IN, 3University of Warwick,

Coventry, England (357)

9:30 Co-evolution of Abiotic Stress Adaptation

and Quinclorac Resistance in Echinochloa

colona. C. Rouse*1, N. R. Burgos1, C. A.

Saski2, R. E. Noorai2, V. Shankar2; 1University

of Arkansas, Fayetteville, AR, 2Clemson

University, Clemson, SC (358)

9:45 Convergence of Gene Networks in Multiple-

Resistant Echinochloa. N. Roma-Burgos*1, C.

Rouse1, C. A. Saski2, R. E. Noorai2, A. L.

Lawton-Rauh2, V. Shankar2; 1University of

Arkansas, Fayetteville, AR, 2Clemson

University, Clemson, SC (359)

10:00 Break

10:15 Molecular Insights into Glyphosate

Resistance Mechanisms in North American

Giant Ragweed. P. Westra*1, C. R. Van Horn2,

T. Gaines1, D. E. Stoltenberg4, K.

Ravet1; 1Colorado State University, Fort

Collins, CO, 2USDA, Parlier, CA, 4University

of Wisconsin-Madison, Madison, WI (360)

10:30 Differing Mechanisms of Glyphosate

Resistance in Chloris truncata and Chloris

virgata in Australia. T. D. Ngo, J. M. Malone,

M. Krishnan, P. Boutsalis, G. S. Gill, C.

Preston*; University of Adelaide, Glen

Osmond, Australia (361)

10:45 EPSPS Amplification Triggers Genome

Alteration and Rapid Evolution of

Glyphosate Resistance in Amaranthus

tuberculatu. M. Jugulam*1, D. Koo2, B.

Friebe2, B. S. Gill2; 1Kansas State University,

Manhattan, KS, 2Educational, Manhattan, KS

(362)

11:00 Expression Hotspots in Herbicide Resistant

Waterhemp (Amaranthus tuberculatus). D.

Giacomini*1, T. Gaines2, R. S. Beffa3, P.

Tranel4; 1University of Illinois, Urbana,

IL, 2Colorado State University, Ft. Collins,

CO, 3Bayer CropScience, Frankfort / Main,

Germany, 4University of Illinois, Urbana, IL

(363)

11:15 Identification of the Genetic Basis for

Dicamba Resistance in Kochia scoparia. P.

Westra*1, S. LeClere2, D. Sammons3, T.

Gaines4; 1Colorado State University, Fort

Collins, CO, 2Monsanto, St Louis, MO, 3,

Chesterfield, MO, 4Colorado State University,

Ft. Collins, CO (364)

11:30 Herbicide Metabolic Resistance

Characterization. A Review. R. S. Beffa*;

Bayer Crop Science, Frankfort / Main,

Germany (365)

80 81


Symposium: Learning by Listening: Herbicide

Resistance Listening Sessions

*SPEAKER


Section 8. Formulation, Adjuvant and

Application Technology

*SPEAKER

11:45 Genes Driving Detoxification in Amaranthus

palmeri Under Glyphosate Exposure. W.

Molin*1, C. A. Saski2; 1USDA/ARS,

Stoneville, MS, 2Clemson University, Clemson,

SC (366)


TIME: 8:00 AM - 12:00 PM

CHAIR: Jill Schroeder

USDA Office of Pest

Management Policy

Arlington, VA

CO-CHAIR: David Shaw



MODERATOR: Jill Schroeder

USDA Office of Pest

Management Policy

Arlington, VA

8:00 Introduction to the Symposium and

Summary of the Listening Sessions. D.

Shaw*1, M. Barrett2, J. Schroeder3; 1Mississippi

State University, Mississippi State, MS, 2Univ

of KY Dept of Plant & Soil Sciences,

Lexington, KY, 3USDA Office of Pest

Management Policy, Arlington, VA (367)

8:30 Panel discussion 1: Representative

Stakeholders from the Regional Listening

Sessions: Impressions of the Listening

Sessions and Recommendations for Next

Steps. M. Barrett*1, J. Schroeder2, D.

Shaw3; 1University of Kentucky Department of

Plant & Soil Sciences, Lexington, KY, 2USDA

Office of Pest Management Policy, Arlington,

VA, 3Mississippi State University, Mississippi

State, MS (368)

10:00 Break

10:15 Panel discussion 2: Listening Session

Coordinators: Outcomes, Impressions, and

Recommendations for Next Steps. J.

Schroeder*1, D. Shaw2, M. Barrett3; 1USDA

Office of Pest Management Policy, Arlington,

VA, 2Mississippi State University, Mississippi

State, MS, 3University of Kentucky Department

of Plant & Soil Sciences, Lexington, KY (369)


TIME: 8:00 AM - 10:00 AM

CHAIR: Connor Ferguson


MS State, MS

MODERATOR: Bryan Young

Purdue University

Brookston, IN

8:00 Effects of Selected Adjuvants on Weed Control

with Glufosinate-Ammonium in Colorado and

South Dakota. J. Daniel*1, P. Westra2, E. Westra2,

P. Johnson4; 1Daniel Ag Consulting, Hudson, CO,

CO, 2Colorado State Univ, Fort Collins,

CO, 4South Dakota State University, Brookings,

SD (370)

82 83


The State of the Weed Control Industry In

2018

*SPEAKER

8:15 AccuDropTM - A New Drift Control and

Deposition Adjuvant. T. A. Hayden*1, G. Dahl2,

R. Edwards3, J. A. Gillilan4, R. L. Pigati5, J.

Gednalske6, E. Spandl5, L. C. Magidow8, A.

Clark3, D. C. Bissell9; 1Winfield United,

Owensboro, KY, 2Winfield United, Eagan,

MN, 3WinField United, River Falls, WI, 4WinField

United, Springfield, TN, 5WinField United,

Shoreview, MN, 6, River Falls, WI, 8Winfield

United, Maplewood, MN, 9Winfield United, River

Falls, WV (371)

8:30 Evaluation of a New TwinJet Nozzle for Weed

Control in Peanut. E. P. Prostko*1, B. Ward2, G.

C. Rains1, W. Carter1; 1University of Georgia,

Tifton, GA, 2University of Georgia, Colquitt, GA

(372)

8:45 Nozzle and Pressure Effects on Herbicide

Efficacy using Enlist One™, Engenia™, and

Xtendimax™ Approved Tank Mixes. C.

Ferguson*1, P. H. Urach Ferreira1, M. T. Wesley1,

D. Reynolds1; 1Mississippi State University, MS

State, MS, (373)

9:00 Collection of Quantitative Herbicide

Performance Data: Why Should We Not Rely

Solely on Visible Assessments? N. E. Korres*1, J.

Norsworthy1; 1University of Arkansas, Fayettevile,

AR, (374)

9:15 The Influence of Pump Shear on the Droplet

Spectrum of Spray Mixtures Containing

Dicamba, Glyphosate and Various Drift

Reduction Agents. D. C. Bissell1, L. C.

Magidow2, A. Clark3, R. L. Pigati*4, G. Dahl5, J.

Gednalske6, E. Spandl5; 1WinField United, River

Falls, WV, 2WinField United, Maplewood,

MN, 3WinField United, River Falls, WI, 4WinField

United, Shoreview, MN, 5WinField United, Eagan,

MN, 6, River Falls, WI, (375)

9:30 Performance of New High Loaded 2,4-D and

Dicamba Formulations with Built-In Drift

Reduction Technology. J. Daniel1, E. Westra*2,

P. Westra2, G. Kruger4, S. K. Parrish5; 1Daniel Ag

Consulting, Hudson, CO, CO, 2Colorado State

University, Fort Collins, CO, 4University of

Nebraska-Lincoln, North Platte, NE, 5Agrasyst

Inc., Spokane, WA (376)

LOCATION: Arlington Salon V &

VI

TIME: 9:00 AM - 12:00 PM

CHAIR: Steve Fennimore

University of

California-Davis,

Davis, CA

MODERATOR: Steve Fennimore

University of

California-Davis,

Davis, CA

9:00 The Business of Weed Control. S. A.

Fennimore*; University of California-Davis,

Davis, CA (377)

9:20 Past and Future Trends in the World

Herbicide Market. J. Shoham*; Syngenta

(retired), Greensboro, NC (378)

9:40 Consolidation and Competition in the

Agricultural Chemical Industry. J.

MacDonald*; USDA, Washington, DC (379)

10:00 Evolution of the Herbicide Marketplace. P. J.

Porpiglia*; AMVAC Chemical Corporation,

Irvine, CA (380)

10:20 Break

10:35 The Role of Smart Machines in the Business

of Weed Control. W. Patzoldt*1, E. Ehn2, M.

Keely1, B. Chostner1; 1Blue River Technology,

Sunnyvale, CA, 2Blue River Tech, Capitola,

CA (381)

84 85


Section 12. Soil and Environmental Aspects

*SPEAKER

10:55 Innovative Automation for Vegetable

Production. R. Herbon*; Agmechtronix, Silver

City, NM (382)

11:15 Balancing Declining Herbicide Efficacy with

New Technology. D. Mortensen*; Penn State


11:35 Questions and Answers


TIME: 10:00 AM - 12:00 PM

CHAIR: Travis Gannon

North Carolina State

University

Raleigh, NC

CO-CHAIR: Te-Ming Tseng

Mississippi State

University


MODERATOR: Travis Gannon


University

Raleigh, NC

10:00 Phosphate status effects glyphosate uptake,

translocation and transport in Eucalyptus

grandis. W. Peer*1, F. Campos Mastrotti

Pereira2, P. Aguiar Alves2; 1University of

Maryland, College Park, MD, 2São Paulo State

University, Jaboticabal, Brazil (384)

10:15 Reduction on surface runoff of S-

metolachlor and metolachlor oxalic acid by

using vegetative filter strip. V. Gehrke1, E. R.

Camargo*2, L. Avila1, J. Arias3, E. Primel2, F.

Brunetto1, S. Pereira1; 1Federal University of

Pelotas, Pelotas, Brazil, 2Federal University of

Pelotas (UFPel), Pelotas, Brazil (385)

10:30 Response of Five Cover Crop Species to

Glyphosate and Aminomethylphosphonic

acid (AMPA) Residues in Silty Clay Soil. Z.

Ganie*1, A. Jhala1; 1University of Nebraska-

Lincoln, USA, Lincoln, NE (386)

10:45 Soil Volumetric Water Content Influence

Herbicide Bioavailability and Lateral

Mobility. T. Gannon, S. Brinton, P. J.

Maxwell*; North Carolina State University,

Raleigh, NC (387)

11:00 Dicamba Volatility under Field and

Controlled Conditions. T. Mueller*1, L.

Steckel2; 1University of Tennessee, Knoxville,

TN, 2University of Tennessee, Jackson, TN

(388)

11:15 Humidome study on the Volatility of

Dicamba from Soil Surfaces. C. D. Willett*,

E. M. Grantz, J. Norsworthy; University of

Arkansas, Fayetteville, AR (389)

11:30 Comparison of 2,4-D Amine and 2,4-D

Choline Volatility under Field Conditions. T.

Mueller*1, C. Sayer2, P. Hay2, C. Silva2, B.

Bruss3; 1University of Tennessee, Knoxville,

TN, 2Nufarm, Laverton North,

Australia, 3Nufarm, Raleigh, NC (390)

11:45 Air Sampler Demonstration and Discussion:

Lessons Learned. T. Mueller*1, L.

Steckel2; 1University of Tennessee, Knoxville,

TN, 2University of Tennessee, Jackson, TN

(391)

86 87

THURSDAY AFTERNOON FEBRUARY 1


THURSDAY AFTERNOON FEBRUARY 1


*SPEAKER

LOCATION: Arlington Salon

III

TIME: 1:00 PM - 2:30

PM

CHAIR: Christopher Van

Horn

USDA

Parlier, CA

CO-CHAIR: Christopher

Rouse

University of

Arkansas

Fayetteville, AR

MODERATOR: Christopher Van

Horn

USDA *Speaker 1:00 Inheritance and Comparison of PPO-

inhibitor Resistance Mechanisms in Palmer

amaranth. V. Varanasi*, C. Brabham, J.

Norsworthy; University of Arkansas,


1:15 A Novel Amino Acid Substitution (Gly399Ala)

in Protoporphyrinogen Oxidase 2 Confers

Broad Spectrum PPO-Inhibitor Resistance

in Amaranthus palmeri. G. Rangani1, R.

Salas*2, R. A. Aponte3, A. Landes3, N. Roma-

Burgos2; 1University of Arkansas - Fayetteville,

Fayetteville, AR, 2University of Arkansas,

Fayetteville, AR, 3BASF SE, Limburgerhof,

Germany (393)

1:30 Are Resistant Weeds More

Resilient? Differential Induction of

Secondary Metabolite Profiles Across

Glyphosate Susceptible and Resistant

Populations of Amaranthus palmeri in

Response to Abiotic Stressors. N. Tharayil*1,

E. M. Leonard1, A. S. Maroli1, V. Nandula2, S.

Duke3; 1Clemson University, Clemson,

SC, 2USDA-ARS, Cleveland,

MS, 3USDA/ARS/NPURU, Oxford, MS (394)

1:45 WeedGenomics: An Online Repository for

Genomic Information of Weeds. J. S.

McElroy*, S. Sivaraj, S. Wilkhu, H. Zhang;


2:00 Possibilities and Potential Consequences of

Microbiome Mediated Herbicide

Resistance. J. Gressel*; Weizmann Institute of

Science, Rehovot, Israel (396)

LOCATION: Grand Salon G & F

TIME: 1:00 PM - 2:00 PM

CHAIR: Jayesh Samtani

Virginia Tech.

University

Virginia Beach, VA

CO-CHAIR: Katherine Jennings


University

Raleigh, NC

MODERATOR: Jayesh Samtani

Virginia Tech.

University

Virginia Beach, VA

88 89

1:00 Hop Tolerance to Directed Applications of

Glufosinate. R. A. Boydston*; USDA-ARS,

Prosser, WA (397)

1:15 Survey of Weed Species and Test of

Herbicides Mixed in Barrels for Weeds

Control in Camellia oleifera Abel Forest in

Hunan Province. C. Jin*, X. Zhang, Y. Zhou,

Y. Hu; Hunan University of Humanities,

Science and Technology, Loudi, Peoples


1:30 Base-editing Efficiently Creates Non-GM

Herbicide Resistant Plants. L. Jiang*; China

Agricultural University, Beijing, Peoples


90 91

CRYSTAL GATEWAY MARRIOTT HOTEL

Chapel

92 93

Author Index

Able, S. 284

Abugho, Seth 90

Acciaresi, Horacio A. 98, 99, 126, 127

Ackley, Bruce 76

Adams, Jason W. 145

Adams, Justin 217

Addes, Peter 308

Adjesiwor, Albert T. 157

Adkins, Steve W. 11, 125, 178, 184, 185

Aguiar Alves, Pedro 384

Ahmed, Khalied 118

Ahuja, Preeti 59

Al-Khatib, Kassim 86, 129, 247, 316, 342

Alba, Oleksandr 136

Albers, Jeffrey 130

Albright, Joshua 261

Alcantara, Esteban 115

Alcantara-de la Cruz,

Ricardo

112, 113, 115

Allen, Sara 199

Alonso, Felipe G. 117

Anand, Madhur 217

Andaya, Cynthia 316

Andaya, Virgilio 316

Anderson, Brian 273

Anderson, M. 282

Anderson, Wesley 21

Aponte, Raphael A. 22, 393

Araujo, Lucas 148

Arias, Jean 385

Armel, Gregory R. 196

Askew, Matthew 4

Asmus, Chad 47, 299

Atser, Godwin 40

Aulakh, Jatinder S. 225

Auwarter, Collin P. 341, 344

Avila, Luis 111, 119, 385

Bae, Jichul 314

Baek, Yousoon 231

Bagavathiannan,

Muthukumar V.

82, 90, 93, 108, 241, 265

Bajwa, Ali A. 125, 184

Balbinot, Andrisa 23

Bales, Scott R. 7

Bamber, Kevin W. 47, 50, 154

Banks, Philip 243, 322

Baraibar, Barbara 251

Barber, Tom 208, 209

Barickman, Casey 352

Baris, R. 286

Barker, Abigail 150

Barnes, Ethann 186

Barney, Jacob 326

Barney, William P. 331

Baron, Jerry J. 331

Barreiro, Alex 204

Barrett, Michael 74, 148, 232, 267, 294,

367, 368, 369

Bartley, Paul 12

Basinger, Nicholas 139

Bass, Troy 148

Bastiani, Marlon O. 23

Batts, Thomas 62

Baughman, Todd A. 28, 30, 32, 169

Beam, Shawn 47, 50, 154

Becker, Rafael 119

94 95

Beffa, Roland S. 63, 146, 236, 363, 365

Belcher, Jason 229

Bell, Jared L. 357

Benoit, Diane L. 91

Berg, Aaron 217

Bernards, Mark 36, 80

Bertucci, Matthew 12, 172

Besancon, Thierry E. 343

Biazzo, Jeromy 95

Biggs, Meghan 167

Birthisel, Sonja K. 244

Bish, Mandy 1, 133, 161, 167, 197, 228

Bishop, Michael 265

Bissell, Daniel C. 371, 375

Blank, Timothy 86, 316

Boe, Jodi E. 140

Bolaños, Andres 81

Bond, Jason P. 134, 143

Bough, Raven 151

Boughton, Raoul 21

Boutsalis, Peter 361

Bowe, Steven 196

Boyd, Adam 94

Boyd, Nathan 61, 155, 328, 337, 346

Boydston, Rick A. 397

Boyette, Clyde D. 105

Brabham, Chad 108, 109, 353, 392

Bracamonte, Enzo 113

Bradley, Kevin 1, 133, 161, 167, 197, 228

Bravo, Washington 319

Breshears, Elise 260

Bretthauer, S. 283

Bridges, David 333

Brim-Deforest, Whitney

B.

86, 129, 247, 316

Brinton, Scott 118, 221, 387

Briscoe, Kyle 257

Brooker, Aaron 156

Brown, Danny M. 194

Brown, Patrick J. 231

Brown-Johnson, Ashli 143, 177

Browne, Frances B. 210

Brunetto, Felipe 119, 385

Brunharo, Caio Augusto 175, 280

Bruss, Bob 207, 390

Buck, Trace 4, 49

Buescher, Elizabeth 35

Bunton, Gatlin 133

Buol, John 19, 177

Buratovich, Maria

Victoria

126

Burgos, Nilda R. 320, 358

Burke, Ian C. 43

Burns, Erin E. 356

Busi, Roberto 236

Butts, Thomas 19, 149

Byrd, Seth 32

Byrd, Jr., John D. 159, 227

Cahoon, Charles 326

Camacho, Daniel 77

Camargo, Edinalvo R. 111, 119, 385

Campbell, Daniel 332, 335, 336

Campe, Ruth 22, 195

Campos Mastrotti

Pereira, Fernanda

384

96 97

Capmourteres, Virginia 217

Captu, Giovanni 312

Caratti, Fernanda C. 23

Carbonari, Caio A. 15, 107, 121

Carleo, Jenny 166

Carpenter, Zachary A. 20, 141

Carranza, Nelson M. 212

Carter, Oliver 147

Carter, Wen 372

Casale, Federico 318

Castro, Edicarlos B. 121

Cavenaghi, Anderson L. 190

Cena, Maria Eugenia 127

Chahal, Parminder 160

Chase, Carlene A. 59

Chaudhari, Sushila 60

Chauhan, Bhagirath S. 125, 184, 185, 218, 310

Chen, Wenlin 334

Cheng, Liang 8

Chism, William J J. 267, 292

Chostner, Ben 381

Christoffoleti, Pedro J. 15, 16, 187

Clark, Andrea 371, 375

Clark, Shannon L. 16, 187

Clarke, Christopher 89

Clay, Sharon A. 24

Cole, Kail 38

Colquhoun, Jed 262, 340

Conley, Shawn P. 93

Constantin, Jamil 3

Contreras, Diego J. 48

Cook, Trey 335

Copeland, J. Drake 14, 53, 274

Cordeau, Stephane 87

Cousens, Roger D. 84, 308

Cowbrough, Mike 173

Crawford, Laura 347

Crose, Jodie 38

Cruz-Hipolito, Hugo 112

Cuda, James P. 289

Cuerrier, Marie-Edith 83

Culpepper, A. S. 6, 208, 281

Cummings, Daniel C. 38

Curran, William 31

Currie, Randall 74

Curtis, Daniel W. 252

Czarnota, Mark A. 64, 220

Da Silva, Paulo V. 15, 16, 122, 187

Dahl, Gregory 194, 295, 296, 301, 304,

307, 371, 375

Dalla Valle, Natalino 212

Daniel, Jim 370, 376

Danohue, Kathleen 308

Das, Sanghamitra 345

Davis, Adam 82

Davis, Vince 43

Dayan, Franck E. 16, 150, 151, 181, 234

de Boer, Tessa J. 142

De Leon, Teresa B. 86, 129, 316

De Prado Amian, Rafael 22, 112, 113, 115

Deng, Yuquan 354

Dentzman, Katherine 260, 261

dePamphilis, Claude 89

Derr, Jeffrey 219

Deveaud, Tanguy 315

98 99

Devkota, Pratap 39

Dias, Jose Luiz 21, 226

Dias, Roque C. 15

Diehl, Katherine H. 72, 104, 166, 223

Dille, J. 43, 74, 85, 130, 168, 246

Dinkins, Randy D. 148

Dintelmann, Brian R. 133

DiTommaso, Antonio 87, 95

Dittmar, Peter 62

Dixon, Alfred 40

Dixon, Montague U. 330

Dobbels, Anthony 2

Dodds, Darrin 19, 149, 189, 191

Dominguez, Rafael 115

Dominguez-Valenzuela,

Jose A.

112

Donahue, Maia 357

Dong, Fengxia 262

Doohan, Douglas 263

Dos Santos, Paulo H. 15

Dotray, Peter 30, 32, 171

Du, Jin-rong 67

Duke, Stephen 233, 394

Dyer, William e. 356

Edwards, Robert 235

Edwards, Ryan 194, 371

Egewarth, Klaus 119

Ehn, Erik 381

Eizenberg, Hanan 88, 264

Ekeleme, Friday 40

El-Hawary, Mohamed

M.

103

Elango, Navin 357

Ellis, Jeff 274

Elmore, Greg 275

Elmore, Matthew T. 72, 104, 166, 222, 223

Engel, Ryan P. 55

Enloe, Stephen 201, 226

Ervin, David E. 260, 261

Espino, Luis A. 86, 247, 316

Evans, Anton F. 240

Everman, Wesley 9, 43, 44, 48, 85, 123, 124,

139, 152, 260, 261

Ezell, Andrew 229, 230

Fakhoury, Ahmad M. 134

Faletti, Matt 187

Farooq, Muhammad 125

Farrell, Shea 161

Fautt, Chad 116, 255

Felix, Joel 338

Feng, Paul 216

Fennimore, Steve A. 377

Ferguson, Connor 78, 143, 373

Ferhatoglu, Yurdagul 232

Fernandez Moreno,

Pablo

22, 112, 113, 115

Ferrell, Jason 62, 226, 319

Figueiredo, Marcelo 16, 187

Filin, Sagi 264

Filippi, Anthony 265

Flessner, Michael 47, 50, 124, 152, 154, 326

Fletcher, Reginald 33

Flynn, Scott 70

Forcella, Frank 82

Franca, Lucas 19, 149, 189, 191

Francis, Ian K. 193, 196

100 101

Friebe, Bernd 362

Frisvold, George 260, 261

Gage, Karla 134, 144, 323

Gaines, Todd 151, 182, 190, 236, 360,

363, 364

Galla, Mariano F. 342

Gallandt, Eric 163, 244

Ganie, Zahoor 386

Gannett, Maria A. 65

Gannon, Travis 118, 221, 387

García, Alejandro 190

García, Fiorella 102

Garcia-del Rosal, Maria

J.

113

Garris, Sam 189

Gazziero, Dionisio P. 190

Gealy, David 321

Gednalske, Joe 194, 371, 375

Gehrke, Vinicios 385

Geiger, Matthew C. 144

George-Jaeggli, Barbara 310

Ghantous, Katherine M. 266

Giacomini, Darci 363

Gill, Bikram S. 362

Gill, Gurjeet S. 361

Gillilan, Jo A. 194, 371

Gimenes Cotrick Gomes,

Giovanna L.

107, 121

Gomez, Robin 102

Gonzalez, Susana 236

Goodrich, Loren 231

Gramig, Greta G. 82

Grant, Jennifer 65

Grantz, Erin M. 26, 120, 389

Green, J.D. 165

Green, Jeremy 56, 109

Green, Magan 20

Gressel, Jonathan 396

Grey, Timothy 256

Grguric, Meghan 173

Grichar, W. James 30

Gulden, Robert H. 128

Gundy, Garrison J. 168, 246

Gunsolus, Jeffrey 260, 261

Han, Heping 236

Hanson, Bradley 175, 280, 342

Haramoto, Erin 82, 101, 165

Hare, Andrew 45, 46

Haring, Steven C. 124, 152

Harlow, Christopher D. 66

Harris, Chinchu 73

Harris, James 94

Hatterman-Valenti,

Harlene

341, 344

Hauser, Stefan 40

Hausman, Nick 350

Hay, Marshall 158, 168, 246

Hay, Phillip 390

Hayden, Thomas 194, 371

Haygood, Bobby 274

Heap, Ian M. 315

Heaton, Brent S. 36, 80

Hedges, Brittany 170

Heider, Daniel 340

Hemminghaus, John 200

Hennigh, David S. 196

Herbon, Ryan 382

103 102

Herrmann, Jeff 199

Hestir, Erin L. 139

Hidayat, Purnama 289

Higby, Jeffery 265

Hildebrandt, Curtis M. 151

Hill, Gene 333

Hoagland, Robert 105

Honaas, Loren 89

Hooker, David C. 170, 174

Hooks, Cerruti R. 349

Horak, Michael 82, 241

Howell, Andrew 203

Hoyle, Steve 203

Hu, Chengsong 263

Hu, Yihong 92, 100, 398

Huang, Xinpei 212

Hubner, Jonathan 119

Huebner, Cynthia 309

Huggins, Tim 335

Hulting, Andrew G. 252

Hurley, Terry 260, 261

Hutzler, Johannes 195

Hyten, David L. 162

Inman, Matthew 45, 46

Iqbal, Nadeem 185

Irmak, Suat 186

Ishida, Joey 338

Iwakami, Satoshi 236, 237

J, Anjani 41, 192, 254

Jackson, Brian 12

Jacobs-Young,

Chavanda

2

Jasieniuk, Marie 63, 116, 255, 315, 355

Jennings, Katherine 12, 60, 135, 139, 172

Jha, Prashant 13, 27, 41, 176, 192, 254,

327

Jhala, Amit 160, 162, 186, 215, 245,

386

Jia, Xiaoyan 89

Jiang, Linjian 399

Jin, Chenzhong 92, 100, 354, 398

Johnson, Ashli B. 20, 141

Johnson, Eric 253

Johnson, Paul 370

Johnson, Quintin 259

Johnson, William G 82, 93, 197

Johnson III, Wiley C. 256

Jones, Eric 137

Jordan, David 45, 46, 139, 172

Jorgensen, Niels 188, 202

Joseph, Dwayne 57

Jugulam, Mithila 74, 160, 239, 355, 362

Junqueira, Leonardo V. 117

Jussaume, Ray 260, 261

Kanaziz, Rachel L. 118

Kandru, Sudhakar 193

Kao-Kniffin, Jenny T. 8, 65

Kaundun, Shiv S. 240

Küpper, Anita 190

Keeling, Wayne 30, 171

Keely, Mac 381

Keigwin, Jr., Richard P. 267,288

Keith, Barbara K. 114, 356

Kenny, Dan 269

Kerr, Christopher 291

Kevis, Stuart 193

105 104

Khalil Tahmasebi,

Behroz

115

Khatri, Kshitij K. 155

Kiely, Timothy 293

Kikugawa, Hiroshi 51, 52, 276

Kingsley, Kathryn L. 72, 104

Kitis, Yasin Emre 350

Knezevic, Stevan 186

Kniss, Andrew 27, 29, 157, 176, 327

Koehler, S. 284

Koo, Dal-Hoe 362

Korie, Sam 40

Korres, Nicholas E. 93, 110, 374

Kowalski, Kurt P. 72

Kraemer, Gerd 193

Kraus, Helmut 193

Krausz, Ron 144, 323

Krishnan, Mahima 361

Kruger, Greg 19, 143, 149, 207, 208,

209, 297, 376

Kruse, Jason K. 5

Kult, Keegan 336

Kumar, Vipan 13, 25, 41, 55, 192, 254

Kunkel, Daniel 331

Laforest, Martin 83, 91

Laird, Patsy 333

Lamb, Alyssa 2, 132

Lamego, Fabiane P. 23

Lampman, Joellen 65

Landes, Andreas 22, 393

Larose, Hailey 88

Lashley, Marcus 312

Lati, Ran N. 264

Latorre, Debora 207

Laughinghouse, H. Dail 138

Lawrence, Nevin C. 27, 82, 176, 186, 327

Lawton-Rauh, Amy L. 359

Leary, James 188

LeClere, Sherry 364

Leinfelder-Miles,

Michelle

86, 247, 316

Leland, Shane 13, 41

Leon, Chris 47

Leon, Ramon 5, 96, 241, 319, 329

Leonard, Elizabeth M. 394

Lerch, Robert N. 161, 167

Lerchl, Jens 195

Leslie, Alan W. 349

Leslie, Deborah L. 120

Lewis, Mark 308

Li, Chengjun 308

Li, Chun-yan 67

Li, Jinbo 92, 354

Li, Steve 54, 210, 258

Liberator, Kelly 47

Liebl, Rex A. 196

Lim, Charlemagne A. 27, 41, 192, 254

Lindenmayer, Brad 38

Lindquist, John 162

Lingenfelter, Dwight 31

Linquist, Bruce A. 86, 247, 316

Liu, Xiu 92, 354

Lopez, Enrique 81

Lou, Yuanlai 97, 325

Louws, Frank J. 172

Loux, Mark 2, 82, 132

Lowry, Carolyn J. 313

106 107

Lygin, Anatoli V. 231, 240

Ma, Li 187

Ma, Rong 35, 231, 240

MacDonald, Gregory E. 138, 180

MacDonald, James 379

Machado, Fellipe G. 10

Magidow, Lillian C. 300, 371, 375

Mahajan, Gulshan 310

Maity, Aniruddha 90

Mallory-Smith, Carol 175, 252

Malone, Jenna M. 361

Manalil, Sudheesh 178, 185

Manuchehri, Misha 38

Mao, Dili 214

Marble, Chris 68, 180

Marin, Silvia 102

Maroli, Amith S. 317, 394

Marschner, Caroline A. 87, 95

Marshall, Michael W. 34, 57, 71

Martin, Eitan 77

Matocha, Matthew 205, 206

Matthews, Joseph L. 144

Matzrafi, Maor 255, 315

Maxwell, Patrick J. 387

McCartney, Kevin R. 69

McCauley, Cara 183

McCloskey, William B. 37

McCollough, Margaret

R.

163

McCullough, Patrick 64, 220

McElroy, Joseph S. 94, 395

McFarland, Janis 332

McIndoe, Eddie 240

McKenzie, Kent B. 316

McMurray, Larn 214

Mendes, Kassio F. 117

Mendes, Rafael R. 3

Menendez, Julio 77, 79

Mereb Negrisoli,

Raphael

138

Meredith, Ashley 20

Merotto Jr., Aldo 190

Mesgaran, Mohsen B. 84, 308

Metzger, Brendan 174

Metzger, Michael 271

Meyer, Chris 56, 146

Meyers, Stephen 60

Michel, Frederick 263

Michelmore, Simon 214

Milbrath, Lindsey R. 95

Milewski, Elizabeth 268

Miller, Donnie 60

Miller, W. 287

Mills, Anthony 19

Mitchell, Paul 262, 333

Molin, William 366

Monks, David 135, 139, 172

Monquero, Patricia A. 15, 16, 122, 187

Montgomery, Robert 275

Moody, Jim 350

Moore, Matt 56

Morales, Jordan 59

Morell, Mauricio 212

Morello, Juan Pablo 82

Moretti, M. 280

Morgan, Gaylon D. 32

Moriel, Philipe 226

108 109

Morishita, Don W. 35, 254

Morris, James A. 240

Morris, Scott H. 87, 95

Mortensen, David 251, 383

Moseley, Carroll 332, 333

Mosqueda, Elizabeth G. 27, 176

Mueller, Tom 93, 249, 250, 388, 390,

391

Murphy, James A. 222

Murray, Kathy 65

Mutters, Randall G. 86, 247, 316

Nakka, Sridevi 239

Nandula, Vijay 116, 238, 317, 355, 394

Napier, Richard 357

Neal, Joseph 66

Nelson, David 88

Neve, Paul 190

Ngo, The D. 361

Nichols, Robert 306

Nie, Haozhen 140, 153

Nielson, Ryan L. 193, 196

Nissen, Scott J. 16, 182, 187

Noguera, Matheus 119

Nolte, Scott A. 205, 206

Noorai, Rooksana E. 358, 359

Norsworthy, Jason 26, 56, 93, 108, 109, 110,

120, 146, 182, 208, 209,

260, 261, 353, 374, 389,

392

Nurse, Robert E. 314

O’Sullivan, John 58

Oakley, Graham 208

O’Brien, Sarah R. 240

Obenland, Olivia A. 240

Odero, D. Calvin 138, 180, 348

ODonnell, Chris C. 11, 178

Ohadi, Sara 308

Okamoto, Hiroyuki 51, 52, 276

Olanrewaju,

Danmaigoro

213

Oliva, Julián H. 190

Oliveira, Rubem S. 3

Oliveira Ribeiro Maia,

Lucas

5

Oliver, Dick 213

Olojede, Adeyemi 40

Olorunmaiye, Patience

M.

40

Olson, Brian 213

Olson, Gene L. 148

Olson, Wayne A. 213

Omand, Kelly 213

Omielan, Joseph 70, 213

Ondoua, Roger 213

Oneto, Scott 213

Onofri, Andrea 84

Oostlander, Mark D. 196

OQuinn, Thomas N. 9, 44

Orgeron, Albert 213, 277

Orlowski, John 213

Ortiz, Mirella 16, 187

Ortiz-Ribbing, Loretta 213

Oseland, Eric 1, 213

Osteen, Gary 213

Ostojic, Zvonimir 213

Ott, Eric 213

Ottis, Brian 213

Owen, Micheal 82, 137, 260, 261

Page, Eric R. 314

110 111

Palma-Bautista,

Candelario

112

Park, Bradley S. 222

Park, So Yon 89

Parks, Max 51, 52, 276

Parrish, Scott K. 376

Patterson, Eric 236

Patton, Aaron J. 166

Patzoldt, William 381

Paull, Jeffrey 214

Pearce, Robert 101

Pearson, Brian J. 68, 180

Peer, Wendy 73, 384

Peerzada, Arslan M. 11, 178

Peng, Kailing 92

Perdue, Sonny 2

Pereira, Silvana 385

Perez, Hector E. 180

Perez-Jones, Alejandro 216

Perry, Hunter 212

Peterson, Dallas 74, 75, 130, 158, 197

Peterson, Robbie 28, 30, 169

Petrovic, Marty 65

Phillippo, Colin 339, 351

Picapietra, Gabriel A. 98, 99

Piccolo, Matheus 21

Pigati, Raymond L. 194, 300, 371, 375

Pittman, Kara B. 47, 50, 326

Plakhine, Dina 88

Plumblee, Michael 189, 191

Porpiglia, Peter J. 380

Porri, Aimone 236

Powles, Stephen 236

Pratt, Paul D. 291

Preston, Christopher 214, 361

Price, Katilyn J. 54, 210, 258

Primel, Ednei 385

Probst, Michael 164

Prostko, Eric 147, 372

Prosvirin, Andrey 265

Prusinska, Justyna 357

Raeder, Alan J. 51, 52, 174, 276

Rains, Glen C. 372

Rajan, Nithya 265

Ralph, Paula 89

Ramirez-Rubio, Pablo 79

Ramos, Romulo A. 196

Rana, Neha 198, 204

Randell, Taylor M. 6

Rangani, Gulab 393

Ravet, Karl 360

Rayamajhi, Min 291

Reba, Michele L. 120

Rector, Lucas 47

Rector, Ryan 198, 208, 298

Reddy, Krishna 33

Redmond, Christopher 75

Refatti, João P. 111

Reid, Cedric 177

Renner, Karen 156

Renz, Mark 188, 202

Reynolds, Daniel 18, 19, 20, 78, 93, 141,

143, 177, 179, 208, 209,

373

Riar, Dilpreet 357

Richardson, Robert 203

Riddle, Rachel 58

Riechers, Dean E 231, 240

112 113

Riley, Eric 275

Ritchie, Glen 32

Rittmeyer, Richard A. 340

Robinson, Darren E. 170, 174

Rockenbach, Dalvane 23

Rodriguez, Oscar 186

Roerig, Kyle 252

Rohrig, Eric 291

Roma-Burgos, Nilda 111, 131, 359, 393

Rosset, Jonathan D. 128

Rossi, Frank 65

Rouse, Christopher 241, 320, 358, 359

Rubione, Claudio 242

Rupp, Robert N. 38

Russell, David 159, 227

Russell, Kyle 32, 171

Rustom, Samer 4

Ryan, Matthew R. 313

Sacher, Ben 335, 336

Sadek, Mohamed E. 103

Saha, Debalina 180

Saikai, Yuji 262

Salas, Reiofeli 111, 393

Sammons, Doug 364

Samples, Chase 149, 189, 191

Samtani, Jayesh 345

Sanders, Colton H. 34, 71

Sanders, John 9, 123

Sandler, Hilary A. 266

Sandoski, Craig 353

Sankula, Sujatha 272

Sarangi, Debalin 215

Saski, Christopher A. 358, 359, 366

Savinelli, Catherine 332

Sawyer, Jennifer 166

Sayer, Chad 207, 390

Sbatella, Gustavo M. 27, 176, 327

Schmitzer, Paul R. 357

Schrage, Brandon 9

Schroeder, Jill 74, 284, 367, 368, 369

Schultheis, Jonathan R. 172

Schumann, Arnold 337

Scott, Barbara 259

Scott, Robert 208

Scursoni, Julio 82

Sebastian, Derek J. 16, 187

Segobye, Kabelo 17

Self, Andrew 229, 230

Sellers, Brent 21, 138, 226

Senesac, Andrew 224

Shabana, Yasser M. 103

Shaddox, Travis W. 5

Shankar, Vijay 358, 359

Sharma, Gourav 131, 352

Sharpe, Shaun M. 328

Shaw, David 179, 241, 367, 368, 369

Shaw, Richard 207

Shergill, Lovreet S. 228

Sherman, Austin D. 165

Shirtliffe, Steven J. 253

Shoham, Jonathan 378

Shrestha, Swati 131, 312

Shropshire, Christy 42

Sierras, Nuria 79

Sievernich, Bernd 193

Sikkema, Peter 42, 43, 85, 170, 174, 197,

211

Silva, Claudio 390

Simamora, Kiki 289

114 115

Simard, Marie-Josee 83, 91

Sing, Sharlene 69

Singh, Vijay 90, 265

Sivaraj, Sunit 395

Slavov, Gancho 190

Smeda, Reid 93

Smith, Billy 270

Smith, Jenna 6

Smith, Richard G. 313

Smith, Stephen 135

Smith, Steve 305

Snyder, Rick 352

Soltani, Nader 42, 43, 85, 211

Soni, Neeta 182

Sosnoskie, Lynn M. 280

Soufiane, Brahim 91

Souza, Gustavo M. 23

Spandl, Eric 194, 300, 371, 375

Spaunhorst, Douglas J. 277

Sperry, Benjamin P. 18, 143

Sprague, Christy 7, 82, 156, 164, 279

Stahlman, Phillip 25, 55, 74, 85, 130

Stauffer, Eva 195

Steckel, Lawrence 14, 53, 197, 209, 274, 285,

303, 388, 391

Steckel, Sandy 53

Stenger, John E. 341, 344

Stengle, Jennifer 65

Stephenson, Daniel 4, 49, 208

Steppig, Nicholas 153

Sterling, Tracy M. 114

Stetina, Kenneth C. 105

Stewart, Cody 68

Stolte, Rhett 134

Stoltenberg, David E. 82, 360

Sutton, Tim 214

Swanton, Clarence 142, 217

Syrovy, Lena D. 253

Tadmor, Yaakov 88

Takano, Hudson K. 181

Takeshita, Vanessa 117

Talbert, Luther E. 356

Tardif, Francois J. 91, 173

Teeter, Dylon 28, 30, 169

Tehranchian, Parsa 63, 116, 315, 355

Tekiela, Dan R. 290

Tharayil, Nishanth 317, 394

Thompson, Curtis 74, 75, 85, 168, 239

Thompson, Grant 65

Thompson, Matthew N. 120

Thorne, Nolan H. 227

Tipping, Philip W. 291

Tonks, Dennis 51, 52, 276

Tornisielo, Valdemar L. 117

Torres, Beatriz A. 122

Tranel, Patrick 318, 363

Treadwell, Danielle 62

Tresch, Stefan 195

Trower, Zach 228

Tseng, Te-Ming Paul 106, 131, 179, 248, 312,

352

Tuck, Daniel P. 104, 166, 222, 223

Tuosto, Robert 89

Turley, Rickie B. 33

Urach Ferreira, Pedro H. 78, 373

Usman, Hughes 40

116 117

Van Acker, Rene 58

Van De Stroet, Brian M. 24

van der Laat, Rocio 319, 329

Van Horn, Christopher

R.

360

Van Wychen, Lee 74

VanGessel, Mark J. 43, 85, 259, 324

Varanasi, Vijay 108, 109, 353, 392

Velini, Edvaldo D. 15, 107 121

Vendramini, Joao 226

Vennapusa, Amarnath 239

Verma, Satish K. 72, 104

Vila-Aiub, Martín M. 190

Vollmer, Kurt 259, 324

Wafula, Eric 89

Waldstein, Daniel 47

Walker, James 179

Walsh, Michael J. 182, 310

Wang, Hongchun 97, 325

Ward, Brock 372

Ward, Sarah M. 69, 114

Warmund, Michele 133

Waterland, Nicole 309

Webster, Theodore M 256

Weller, Stephen 40

Werle, Rodrigo 162

Wesley, Michael T. 78, 373

Westra, Eric 370, 376

Westra, Philip 181, 182, 360, 364, 370,

376

Westwood, James 88, 89

Whalen, Derek 167

White, James F. 72, 104

White, Mark 334

White, Peter H. 58

Wickings, Kyle 65

Wiggins, Matthew 14

Wilkhu, Sumeet 395

Willenborg, Christian J. 253

Willett, Cammy D. 26, 120, 389

Williams, Linda D. 148

Williams, Martin M. 347, 350

Willis, John 199

Wilson, Christopher 68

Witcher, Anthony 225

Wolf, Roger 336

Woolam, Brandi 4, 49

Wortman, Sam E. 347

Wright, Alan L. 348

Wright, David 96

Wu, Chenxi 216

Wyatt, TJ 292

Wycoff, Nathan 88

Xue, Guang 67

Yadav, Ramawatar 13, 41, 254, 327

Yang, Zhenzhen 89

Yeh, Tamson 65

Yelverton, Fred 221

Yerka, Melinda K. 162

York, Alan 4, 45, 281

Young, Bryan 80, 93, 140, 153, 183, 208,

209, 278

Young, Julie 140, 153

Yu, Jialin 61, 64, 220, 346

Yu, Qin 236

Yue, Ziming 106, 312

Zaccaro, Maria Leticia 159

118 119

Zandstra, Bernard 339, 351

Zhang, Hui 395

Zhang, Huiting 89

Zhang, Xuejiao 92, 100, 398

Zhou, Yunyun 92, 100, 398

Ziggafoos, Jacob 162

Zimmer, Marcelo 119

Ziska, Lewis H. 111, 311

Zollinger, Richard 80, 145, 302

Zotarelli, Lincoln 62

Keyword Index

2,4-D 144, 148, 252

3D 249

4-Hydroxyphenylpyruvate

Dioxygenase (HPPD)

160

Abiotic stress 317

Acifluorfen 149

Adaptation 84

Adjuvants 77, 79, 105

Aeschynomene americana 59

Agroecosystem 178

AHP 266

Alfalfa 116, 315, 355

Allee effect 308

Allelopathic rice 321

Allelopathy 321

Alopecurus myosuroides 235

Alternative crops 256

Amaranthus palmeri 24, 45, 46, 123,

139, 149, 160,

168, 181, 189,

190, 205, 206,

216, 317, 381,

393, 394

Amaranthus retroflexus 136, 185

Amaranthus tamariscinus 206

Amaranthus tuberculatus 144

Ambrosia artemisiifolia 123

Ambrosia trifida 17, 144

Analytic hierarchy processing 266

Annual weeds 87

Anthraquinone derivative 106, 312

Anti-herbivore 312

Application uniformity 97

Application, sequential 105

Aquatic environment 203

Arabidopsis thaliana 89

Arachis hypogaea 372

Areas, natural 227, 309

Artificial intelligence 381

Arylpicolinates 212

Asulam 252

Asymmetric introgression 308

Atrazine 24, 160, 186

Australia 11, 178

Bahiagrass 21

Base water potential 84

Bean, lima 350

Bean, snap 350

Beta vulgaris 256

Bio-fuel 256

Bioassay 181

Bioherbicide 290

Biological control 104

Biology, weed 212, 309

120 121

Biosynthesis 106

Bispyribac-sodium 354

Brassica napus 83

Bromoxynil 39

Burning 226

Butterfly, monarch 227

Camellia oleifera Abel forest 100, 398

Canola 83

Capsicum annuum 349

Challenges 178

Cheatgrass 290

Chenopodium album 136

China 67

Chloris virgata 185

Climate Change 111

Clover 252

Clover, white 252

Competition in seeds and

chemicals

379

Computer science 395

Corn 196, 231, 323

Cotton 45, 46, 185, 189,

206, 381

Cover crop 59, 347, 350

Creeping inchplant 102

Crotalaria juncea 59

Crotalaria ochroleuca 59

Cultivation 256

cultivation 256

Cyhalofop-butyl 111, 354

Cyperus esculentus 349

Cytochrome P450 231

Deer repellent 312

Defense response 89

Desmedipham 256

Detoxification 235

Dicamba 24, 29, 44, 45,

46, 144, 197,

205, 206, 216

Digitaria sanguinalis 139, 349

Dimethenamid-P 231

Distribution 190

Dose-response 44

Drift 44

Drift, spray 49

Droplet Size 149

Drought 87, 309, 394

Echinochloa colona 238

Echinochloa crus-galli 212, 321, 354

Echinochloa oryzicola 237

Ecology, weed 87, 104, 325

Education 241

Efficacy 372

Eleusine indica 48, 349

Emergence pattern 87

Emergence, weed 87

Ethofumesate 256

Eucalyptus grandis 384

Expert witness 243

Extension 241

Fagopyrum esculentum 136

Flumetsulam 252

Fomesafen 144, 216

Forest 309

Galium aparine 325

Genetic analysis 17, 231, 365, 395

Genetic diversity 395

Genetic relatedness 190

122 123

Genomics 395

Germination 88

Giant smutgrass 21, 226

Glufosinate 24, 45, 63, 144,

175, 181, 189,

216, 315

Glutathione S-transferase 231

Glycine max 24, 29, 44, 49,

144, 196, 197,

216, 323

Glyphosate 17, 45, 46, 77,

79, 116, 144,

185, 190, 315,

317, 355, 384,

394

Glyphosate resistance 17, 190

Golf turf 67

Gossypium hirsutum 45, 46, 185, 189,

206

Grazing 226

Habitats, disturbed 87, 309, 317, 323

Habitats, natural 69, 332

Harvest weed seed control 152

Harvest Weed Seed Control 124

herbicide 100, 381, 398

Herbicide adherence 77, 79

Herbicide formulation 77, 79, 185, 212

Herbicide metabolism 175, 231, 235,

237, 365

Herbicide mode of action 185, 212

Herbicide penetration 77, 79

Herbicide resistance 11, 63, 97, 116,

175, 185, 235,

237, 241, 317,

355, 367, 368,

369, 393

Herbicide safener 231

Hexazinone 185

Hormesis 317

Host plant preference 88

HPPD resistance 168

Imazamox 116, 355

Imazapic 39

Indica rice 321

Indigofera hirsuta 59

Integrated pest management 347, 350

Integrated weed management 11, 69, 124, 136,

152, 212, 227,

256, 266, 321,

349

Interference 321

Invasive species 309

Invasiveness 11

Ipomoea batatas 139

Ipomoea

hederacea var. integriuscula

144

Ipomoea lacunosa 317

Isoxaflutole 49, 168

Lactofen 149

Landscapes 69, 332

Leptochloa chinensis 212

Linaria dalmatica 69

Linaria vulgaris 69

Lolium multiflorum 175

Lolium perenne ssp. multiflorum 63, 116, 124,

152, 315, 355

Lolium rigidum 181

Low desert alfalfa 39

Machine learning 381

Mate limitation 308

MCPA 252

124 125

Mechanical weed control 136

Membrane 106

Mergers and innovation 379

Mesosulfuron-methyl 116, 355

Mesotrione 160, 168

Meta-analysis 29

Metabolism 111, 238

Metabolite profiling 231

Metabolomics 394

Metribuzin 39

Microscope 106

Microstegium vimineum (Japanese

stiltgrass)

309

Millennial generation 249

Model 308

Mollugo verticillata 349

Morpho-physiology 11

Mowing 227

Mulch, living 349

Multi-view stereo 264

Multiple resistance 238, 315

Napropamide 337

Native ornamental species 227

No-tillage 323, 349

Non-crop 149, 227

Nozzle type 372

Nutrient management 384

Oenothera laciniata 256

opportunities 178

Optimal temperature 84

Orchards 63, 116, 315, 355

Organic agriculture 136, 152

Orobanche cernua 88

Orobanche cumana (broomrape,

sunflower)

88

Oryza sativa 97, 212, 321

Oxalis stricta 349

Oxidized lipids 231

Oxytropis sericea 114

Panicum dichotomiflorum 144

Paraquat 116, 315, 355

Parasitic weed 88, 89

Pastures 21, 226

Peanut 372

Pendimethalin 185

Pepper, bell 337, 349

Perennial weeds 114

Phelipanche aegyptiaca

(broomrape, Egyptian)

89

Phenmedipham 256

Phosphate deficiency 384

Phosphorous 384

Photosystem (PS) II 160

Physiological 355

Plant phenotyping 264

Poisonous plants 114

Pollination 308

Pollinator Habitat 332

Popcorn 186

Population genetics 190

Potato, sweet 139

PPO 196

PPO inhibitors 393

PPO2 mutation 393

Precision agriculture 264, 337

Priming 317

Protox 196

126 127

Rangeland 114, 226

Rates, reduced herbicide 77, 79, 256

Regional listening sessions 367, 368, 369

Remote sensing 21, 123, 139

Resistance 315

Resistance management 216, 365

Review 365

Rice 97, 212, 321

Right-of-way 227, 332

RIL (recurrent inbred line) 321

Rinskor 212

RNA sequencing 148

Roadsides 227, 309, 315,

355

Rumex spp. 252

S-metolachlor 24, 185, 186,

231, 337

Saflufenacil 39

Secondary metabolites 394

Seed and chemical mergers 379

Seed crop production 252

Seed viability 309

Seedbank 46

Segmentation 264

Selectivity, herbicide 231

Senna obtusifolia 123

Sesbania exaltata 105

Setaria faberi 144

Setaria viridis 136

Sethoxydim 116, 315, 355

Sicklepod 312

Sinapis arvensis 136

Site specific weed management 264

Soil conditions 87

Soil distrurbance 87

Sonchus oleraceus 11

Sorghum 48, 231

Sorghum halepense 181

Sorghum vulgare 48, 231

Soybean 24, 29, 44, 49,

196, 197, 216,

312, 323, 347,

350

Spread 190

Stress tolerance 394

Sugar beet 256

Summer application 39

Sunflower 264

Survey, weed 315

Susceptibility 354

Synergist 235

Taraxacum officinale 104

Technology in education 249

Tensioactives 77

Testimony 243

Thermoinhibition 84

Thifensulfuron-methyl 24

Tillage 87

Tillage, reduced 349

Tolerance 44

Tomato 315, 337

Transcriptome 148

Transcriptomics 395

Transgenic crops 83

Translocation 175

Trianthema portulacastrum 185

Tribenuron-methyl 325

Trifolium pratense 148

Trifolium repens 104

128 129

Trifolium spp. 252

Triticum aestivum 97, 196

Tropical japonica rice 321

Trouble weeds 67

Unmanned aerial vehicle 123, 203

Uptake 111

UV fluorescence 106

Vegetation management 227

Vineyard 63, 116, 315, 355

Virtual reality in education 249

Weed abundance 87

Weed biology 17, 87, 114, 317

Weed competition 136, 139

Weed control systems 144

Weed density 139

Weed identification 381

Weed identification 264

Weed management 178, 185, 186, 365

Weed pathogens 105

Weed science teaching 249

Weed suppression 321, 349

Weeds 100, 398

Wheat 97, 124, 152, 196, 235

Yield components 144

Yield loss 186

Yield loss function 29

Zea mays 196, 231, 323

Zea mays var. everta 186

2017-2018 WSSA Board of Directors

President: Janis McFarland (2017), Syngenta Crop

Protection, 410 Swing Rd., Greensboro, NC 27409

President-Elect: Scott Senseman (2017), University of

Tennessee, 2434 Joe Johnson Drive, 252 Ellington Plant

Building, Knoxville, TN 37996

Vice-President: Larry Steckel (2017), University of

Tennessee, Jackson, TN 38301

Past-President: Kevin Bradley (2016), University of

Missouri, 201 Waters Hall, Columbia, MO 65211

Secretary: Hilary Sandler, (2018) UMASS Cranberry

Station, PO Box 569, East Wareham, MA 02538

Treasurer: Rick Boydston (2018), USDA-ARS, 24106

M. Bunn Rd., Prosser, WA 99350

Director of Publications: Sarah Ward (2019), Colorado

State Univ., C-127 Plant Science Bldg., Ft. Collins, CO

80523

Constitution and Operating Procedures: (2019) Mark

Bernards, Western Illinois University, 1 University

Circle, Macomb, IL 61455

Member-at-Large: Bryan Young (2019), Purdue

University, Lilly Hall of Life Sciences, West Lafayette,

IN 47907

Member-at-Large: Andrew Kniss (2018) Univ. of

Wyoming, 1000 E. University Ave., Laramie, WY 82071

Director of Science Policy: Lee Van Wychen, National

and Regional Weed Science Societies, 5720 Glenmullen

Pl., Alexandria, VA 22303

Graduate Student Representative: Chase Samples (2018)

Mississippi State University, Mississippi State, MS 39762

131 130

Time Monday Tuesday Wednesday Thursday

7:30

Poster

Session

Poster

Session

8:00 8:15 8:30 8:45 9:00 9:15 9:30 9:45 10:00 10:15 10:30 10:45 11:00 11:15 11:30 11:45 Noon 1:00 1:15 1:30 1:45 2:00 2:15 2:30 2:45 3:00 3:15 3:30 3:45 4:00

General

Session

and

Awards

Presentation

4:15 4:30 4:45 5:00

WSSA

Business

Meeting

5:15 5:30 5:45 6:00

WSSA

Awardee

Reception

6:15 6:30 6:45 7:00 7:15 7:30 7:45 8:00 8:15 8:30 8:45

Aquatic Plant Management Society: Rob Richardson

(2017), NC State University, 4401B Williams Hall,

Raleigh, NC 57695

CWSS: Eric Page (2017), Agriculture and Agri-Food

Canada, 2585 County Rd 20, Harrow, ON N0R 1G0

NCWSS Representative: Reid Smeda (2018), University

of Missouri, 204 Waters Hall, Columbia, MO 65211

NEWSS Representative: Prasanta Bhowmik (2017)

University of Massachusetts, Stockbridge Hall, Amherst,

MA 01003

SWSS Representative: Eric Palmer (2017) Syngenta Crop

Protection, 410 Swing Rd., Greensboro, NC 27409

WSWS Representative: Marty Schraer (2017), Syngenta,

152 E Cassidy Dr., Meridian, ID 83646

Executive Secretary: Eric Gustafson, Interactive

Management, Inc., 12011 Tejon St #700

Westminster, CO 80234

PERSONAL TIME SCHEDULE

133 132

NOTES

NOTES

4

Documents

WSSA WEED SCIENCE SOCIETY OF AMERICAwssa.net/wp-content/uploads/WSSA-2018-Program.pdf · Welcome to the 2018 Weed Science Society of America ... Weed Biology and Ecology ... (F4)