Emerald Ash Borer, Current Status in the Western Great ... · in the Western Great Lakes Region Steve Katovich USDA Forest Service Northeastern Area State and Private Forestry

USDA Forest Service State and Private Forestry

Emerald Ash Borer, Current Status

in the Western Great Lakes Region

Steve Katovich

USDA Forest Service

Northeastern Area

State and Private Forestry

Ash Density

Ash density














2014

2014


EAB Status in Upper Michigan


Detection efforts by

the state of

Michigan have

dropped

substantially in the

western U.P.

No new county

detections in the

U.P. in 2014

Detection Efforts in Upper Michigan


Widespread tree mortality

along Highway 2 between

Gladstone and Manistique

Significant tree mortality in the

Calumet area

Tree mortality in and around

Sault St. Marie and St. Ignace

Mapping ash tree mortality is

difficult in the eastern U.P. –

dead ash mixed with dead

American beech

Western U.P. has a much

more extensive ash

component

Tree Mortality - MI


EAB Status in Minnesota


Minnesota• 1 new county detection in 2014,

Olmsted County, City of

Rochester

• Twin Cities populations are still

confined to two counties

(Hennepin and Ramsey)

• Surveys in Duluth have been

conducted – still negative


Winona County site has

widespread EAB activity and

dead and dying trees

Known infested trees are being

actively removed or treated in

the Twin Cities area, tree

mortality is not widespread in

the area

Tree Mortality - MN


EAB Status in Wisconsin


Wisconsin 2014 – New

County Detections

Adams, Buffalo, Calumet, Columbia,

Door, Grant, Jefferson, Monroe,

Oneida, Sheboygan

EAB Detections as of

October 9, 2014


http://datcpservices.wisconsin.gov/eab/articlea

ssets/ConfirmedEABFindsInWisconsin.pdf

Wisconsin does

maintain a website

that lists eab finds

within a county

The table shows a

partial list from that

site as of October

20, 2014


Tree mortality is becoming

widespread and intense in

parts of southeast WI

Pockets of dead and declining

ash are also being reported in

SW Wisconsin

Dead and heavily declining

ash trees have been removed

in the city of Superior

Tree Mortality - WI

Mortality Polygons

Late Summer 2014

Bill McNee, WI DNR

“Mortality in southeast Wisconsin is more

widespread in 2014 than last year and pockets of

heavy mortality have enlarged. Driving from Lake

Geneva to Kenosha to Milwaukee thinning trees

are seen continuously and there are pockets of

dead ash. Last year the area only had pockets of

thinning trees and a few dead ash. It is a very

noticeable change in a year. The area between

West Bend and Port Washington has changed in a

similar manner.” Bill McNee WI DNR

The following photos are from 2014, taken by B.

McNee in the Newburg, WI area.



Summary Southeast and southwest WI have very active

EAB infestations, tree mortality is building

and expanding in these areas

EAB populations in the Twin Cities have not

yet exploded

EAB populations are just beginning to gain a

foothold in areas of the Western Great Lakes

that have extensive forest types dominated

by ash


Information and updates

provided by:

Michigan: John Bedford (MDA); Bob Heyd (MI DNR);

Andrew Storer (MTU)

Minnesota: Mark Abrahamson and Jonathan Osthus

(MDA)

Wisconsin: Renee Pinski (WDATCP) ; Mary Morgan

(City of Superior); Paul Cignan, Bill McNee , Linda

Williams, Todd Lanigan, Andrea Diss Torrance (WI DNR)

USDA APHIS: Douglas Bopp (Brighton MI)

Documents

Emerald Ash Borer, Current Status in the Western Great ... · in the Western Great Lakes Region Steve Katovich USDA Forest Service Northeastern Area State and Private Forestry