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Insecticide Mode of Resistance Utah Pests In-Service Training Ryan Davis Outline 1) Insect resistance 2) Insecticide Mode of Action (MoA) 3) C 9 M A’ 3) Cover 9 common MoA’ s

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Page 1: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

Insecticide Mode of ResistanceUtah Pests In-Service Training

Ryan Davis

Outline

1) Insect resistance

2) Insecticide Mode of Action (MoA)

3) C 9 M A’3) Cover 9 common MoA’s

Page 2: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

I t R i tInsect Resistance

Insect resistance:

occurs when a population of insects builds up a tolerance to a specific chemical, or group of p , g p

chemicals with the same Mode of Action (MoA).

Page 3: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

Importance/Resistance

MoAGroup 2

MoAGroup 3

MoAGroup 4

MoAGroup 5

Finally Done!

MoAGroup 1

MoAGroup 7 QuizIntroduction

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Importance/Resistance

MoAGroup 2

MoAGroup 3

MoAGroup 4

MoAGroup 5

Finally Done!

MoAGroup 1

MoAGroup 7 QuizIntroduction

Page 5: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

Importance/Resistance

MoAGroup 2

MoAGroup 3

MoAGroup 4

MoAGroup 5

Finally Done!

MoAGroup 1

MoAGroup 7 QuizIntroduction

Page 6: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

Importance/Resistance

MoAGroup 2

MoAGroup 3

MoAGroup 4

MoAGroup 5

Finally Done!

MoAGroup 1

MoAGroup 7 QuizIntroduction

Page 7: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

H C Y H l R d I tHow Can You Help Reduce Insect Resistance to Insecticides?

1) consult extension agent for spray recommendations

2) minimize insecticide use by using early maturing or pest tolerant crops2) minimize insecticide use by using early-maturing or pest-tolerant crops

3) use non-chemical techniques first (eg. Biological sprays, crop rotation, etc.)

4) select insecticides and management tools which preserve natural enemies

5) use products at their full, recommended doses

6) use well-maintained equipment to achieve full and proper coverage

7) target younger, more susceptible insect stages

Page 8: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

How Can You Help Reduce Insect Resistance to Insecticides?

8) use appropriate local economic thresholds and spray intervals8) use appropriate local economic thresholds and spray intervals

9) Follow label or extension recommendations on rotating different classes (MoA’s) of insecticides( )

10) When multiple applications per year are needed rotate different MoA’s

11) If control is not achieved do NOT spray the same insecticide switch to one11) If control is not achieved do NOT spray the same insecticide, switch to one with a different MoA

12) Do NOT mix chemicals for use against one target pest

13) Withhold a chemical from use until the population once again becomes susceptible. Treat with a different MoA insecticide in the mean time.

14) U i ti id th t ifi t t t t14) Use insecticides that are specific to your target pest

(eg. narrow spectrum)

Page 9: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

MODE of ACTION (MoA)MODE of ACTION (MoA)

What is Mode of Action?

-is the sum of anatomical, physiological and biochemical interactions and responses that result in ptoxic action of a chemical, as well as the physical (location) and molecular (degradation) fate of the h i l i h ichemical in the organism.

Page 10: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

Wh t?What?M A h i ti id kill !MoA = how an insecticide kills!

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MoA OrganizationExample

M i G

Levels of Classification1. Acetylcholinesterase inhibitors

1A. Carbamates 1B. Organophosphates

C b l Di i

Main Group

Chemical Sub-group

A ti I di t Carbaryl Diazinon

SEVIN

BONIDE

DIAZINON 50W

DIAZINON AG

Active Ingredients

Product Name

ROSE RX

ECO BRAN 2%

500W

TERMINATOR II INSECTICIDE

- 28 MoA’s

-7 MoA’s are unknownHI-YIELD 5% GARDEN & PET DUST

CATTLE EAR TAG7 MoAs are unknown

*Physical toxicants are not 58 products 9 products

ylisted: oils, soaps, dusts, etc.

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What to talk about?

*Surveyed 2008 PNW Insect

What to talk about?

Management Handbook

- Selected commonly recommendedSelected commonly recommended insecticides for ornamental and turf

- chose insecticides based on use frequency and “coolness factor”

- http://pnwpest.org/pnw/insects

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Mode of Action (MoA) Outline ( )

1. Carbamates and Organophosphates

2. Pyrethroids, Pyrethrins

3. Neonicitinoids

4. Spinosyns

5 Insect Growth Regulators (IGR): Juvenile Hormone5. Insect Growth Regulators (IGR): Juvenile Hormone

6. Oils

8. Dusts

7. Entomopathogenic nematodes

8. Dusts

9. Bacillus thuringiensis (Bt)

Page 14: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

General Nerve Overview

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General Nerve Overview

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MoA Group 1. Acetylcholinesterase Inhibitors: p yCarbamates, Organophosphates

MoA Group 1A and 1B Examples:

- 1A: SEVIN, FURADAN, MESUROL

- 1B: ACEPHATE, DURSBAN, DIAZINON, MALATHION

Page 17: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

MoA Group 1. Acetylcholinesterase Inhibitors: Carbamates, Organophosphates, g p p

Page 18: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

MoA Group 1. Acetylcholinesterase Inhibitors: Carbamates OrganophosphatesCarbamates, Organophosphates

Page 19: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

MoA Group 1. Acetylcholinesterase Inhibitors: Carbamates, Organophosphates, g p p

Rapid firing of nerve impulses: convulsion, paralysis, death (respiratory failure)(respiratory failure)

Page 20: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

MoA Group 3: Sodium Channel ModulatorsP th id P th i DDT M th hlPyrethroids, Pyrethrins, DDT, Methoxychlor

G 3 E lGroup 3 Examples:

- 3A: TALSTAR, ALOFT, Bifenthrin, WARRIOR, ADJOURN Permethrin Pyrethroids PyrethrinsADJOURN, Permethrin, Pyrethroids, Pyrethrins

- 3B: DDT, Methoxychlor

Page 21: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

MoA Group 3: Sodium Channel ModulatorsPyrethroids Pyrethrins DDT MethoxychlorPyrethroids, Pyrethrins, DDT, Methoxychlor

Page 22: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

MoA Group 3: Sodium Channel ModulatorsPyrethroids, Pyrethrins, DDT, Methoxychlory , y , , y

Page 23: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

MoA Group 3: Sodium Channel ModulatorsMoA Group 3: Sodium Channel ModulatorsPyrethroids, Pyrethrins, DDT, Methoxychlor

Side Effects: stimulate repetitive nerve discharges (t it hi “DDT Jitt ”) l di t l i d(twitching=“DDT Jitters”), leading to paralysis, and

death.

Both Group 3A and 3B are more effective at colder temperatures

Page 24: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

MoA Group 4: Nicotinic Acetylcholine Receptor AgonistsNeo-nicotinoids (merit), and Nicotine

Group 4 Examples:

- 4A: MERIT, SAFARI, BAYER ADVANCED 12-MONTH… , ,

4B FERTI LOME DOG AND RABBIT RIDDER FULEX- 4B: FERTI-LOME DOG AND RABBIT RIDDER, FULEX NICOTINE FUMIGATOR

Page 25: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

MoA Group 4: Nicotinic Acetylcholine Receptor AgonistsNeo-nicotinoids (merit) and NicotineNeo nicotinoids (merit), and Nicotine

Page 26: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

MoA Group 4: Nicotinic Acetylcholine Receptor AgonistsNeo-nicotinoids (merit) and NicotineNeo nicotinoids (merit), and Nicotine

Page 27: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

MoA Group 4: Nicotinic Acetylcholine Receptor AgonistsNeo-nicotinoids (merit), and Nicotine

Side Effects (neo-nicotinoids target insects, not mammals): increased or decreased heart rate excitation convulsionsincreased or decreased heart rate, excitation, convulsions,

paralysis, and death

Page 28: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

MoA Group 5: Nicotinic Acetylcholine Receptor Allosteric p y pActivatorsSpinosyns

Group 5 Examples:

5: Spinosad, CONSERVE, ENTRUST, SUCCESS

Page 29: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

MoA Group 5: Nicotinic Acetylcholine Receptor Allosteric p y pActivatorsSpinosyns

Where does Spinosad come from?

- Soil in an abandoned rum distillery on a Caribbean Island

- By-product of a bacterial fermentation of corn, cottonseed flour soybean flour glucose methylcottonseed flour, soybean flour, glucose, methyl oleate, and calcium carbonate.

- Compatible with organic farming/gardening practices

Page 30: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

MoA Group 5: Nicotinic Acetylcholine Receptor Allosteric ActivatorsSpinosyns

Page 31: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

MoA Group 5: Nicotinic Acetylcholine Receptor Allosteric ActivatorsSpinosyns

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MoA Group 5: Nicotinic Acetylcholine Receptor Allosteric ActivatorsS iSpinosyns

Side Effects: increased or decreased heart rate, excitation, convulsions paralysis and deathconvulsions, paralysis, and death

Page 33: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

MoA Group 7: Juvenile Hormone Mimics (IGR)p ( )

Group 7 Examples:Group 7 Examples:

7A: GENTROL, ENSTAR II INSECT GROWTH REGULATOR,

7B: AWARD

7C: SENTRY, SERGEANTS GOLD (pet flea and tick products)

Page 34: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

MoA Group 7: Juvenile Hormone Mimics (IGR)

Juvenile Hormone Analogues Fenoxycarb andJuvenile Hormone Analogues, Fenoxycarb, and Pyriproxyfen

Juvenile Hormones (JH) regulate insect growth

Page 35: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

MoA Group 7: Juvenile Hormone Mimics (IGR)

NormalNormal

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MoA Group 7: Juvenile Hormone Mimics (IGR)MoA Group 7: Juvenile Hormone Mimics (IGR)

Other groups that affect insect growth:g p g

MoA Group 10: Mite growth inhibitors

MoA Group 15: Inhibitors of chitin (exoskeletal) biosynthesis, type 0, Lepidopteran

MoA Group 16: Inhibitors of chitin biosynthesis, type 1, Homopteran

MoA Group 17: Molting disruption, Dipteran

MoA Group 18: Ecdysone receptor agonists (halofenozide)

Page 37: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

MoA (Physical toxicant): Horticultural OilMoA (Physical toxicant): Horticultural Oil

Best for: eggs, scales (adult and crawler), blister/rust mites, spider mites, thrips, whiteflies, psyllids, etc.

Product Names:Product Names: - Bonide

Hortic lt ral Oil Spra- Horticultural Oil Spray

- IFA Dormant Oil Spray

- Supreme Oil

Page 38: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

Importance/Resistance

MoAGroup 2

MoAGroup 3

MoAGroup 4

MoAGroup 5

Finally Done!

MoANematode

MoAGroup 7 QuizIntroduction

HORTICULTURAL OIL

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Importance/Resistance

MoAGroup 2

MoAGroup 3

MoAGroup 4

MoAGroup 5

Finally Done!

MoANematode

MoAGroup 7 QuizIntroduction

Page 40: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

Importance/Resistance

MoAGroup 2

MoAGroup 3

MoAGroup 4

MoAGroup 5

Finally Done!

MoANematode

MoAGroup 7 QuizIntroduction

thoraxLateral view of abdominal

segments

tergitehead abdomen

g

tergite abdomen

spiracle sternite

Page 41: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

MoA (Biological: Microbial disruptors of insect midgut membranes): Entomopathogenic nematodesmembranes): Entomopathogenic nematodes

Common nematode families and preferred hosts*:Common nematode families and preferred hosts :

Steinernematidae HeterorhabditidaeAnnual bluegrass weevil Black turfgrass ataeniusAnnual bluegrass weevilBluegrass billbugHunting billbugBlack cutworm

Black turfgrass ataeniusEuropean chaferGreen June beetleJapanese beetleBlack cutworm

Dog/cat flea larvaeEuropean crane flyArmyworms

Japanese beetleMay/June beetlesNo. masked chaferSo. masked chafery

Sod webworms SW. masked chaferWest. masked chafer

Suppliers of beneficial organisms in North America:

*Dr. Parwinder Grewal, The Ohio State University. http://www.oardc.ohio-state.edu/nematodes/turfgrass_pest_management.htm

Suppliers of beneficial organisms in North America:http://www.cdpr.ca.gov/docs/pestmgt/ipminov/ben_supp/contents.htm

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Importance/Resistance

MoAGroup 2

MoAGroup 3

MoAGroup 4

MoAGroup 5

Finally Done!

MoANematode

MoAGroup 7 QuizIntroduction

Nematodes

Page 43: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

Arnold Hara. University of HawaiiDawn Gouge. Texas A&M

Chemical Trade name Chemical Trade Name

*Nematodes are not compatible with the following chemicals:

Anilazine Dyrene Fipronil Chipco ChoiceAzadirachtin Azatin Insecticidal Soap VariousAzinphosmethyl Guthion Isazophos TriumphBendiocarb Turcam Methomyl LannateBendiocarb Turcam Methomyl LannateCarbofuran Furadon Oxamyl VydateCarbaryl Sevin 2-4-D VariousChlorpyriphos Dursban Trichlorfon DyloxEthoprop Mocap Triclorpyr Turflon, ConfrontFenamiphos Nemacur

http://www.oardc.ohio-state.edu/nematodes.htm

Page 44: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

MoA (Physical Toxicant): Insecticidal DustMoA (Physical Toxicant): Insecticidal Dust

Best against soft-bodied insects such as: aphidsBest against soft bodied insects such as: aphids, caterpillars,

Types of dust:Types of dust:

- Boric acid

- Diatomaceous earth (DE)

Sili l/A ili- Silica gel/Aerosilica

http://en.wikipedia.org/wiki/File:Aerogel_nasa.jpg

Page 45: Outline - utahpests.usu.edu · (()MoA’s) of insecticides 10) When multiple applications per year are needed rotate different MoA’s 11) If control is not achieved do NOT spray

Importance/Resistance

MoAGroup 2

MoAGroup 3

MoAGroup 4

MoAGroup 5

Finally Done!

MoANematode

MoAGroup 7 QuizIntroduction

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seta epicuticlep

exocuticle

endocuticle

Basement membrane epidermis

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*The following slide is rated R for graphic insect violence and dust.

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Importance/Resistance

MoAGroup 2

MoAGroup 3

MoAGroup 4

MoAGroup 5

Finally Done!

MoANematode

MoAGroup 7 QuizIntroductionInsecticidal dust cuts

through insect Without cuticle insect

looses water

Dust =

gcuticle

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http://www.immediart.com

Diatoms

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MoA (Microbial disruptor of insect midgut membranes):MoA (Microbial disruptor of insect midgut membranes): Bacillus Thuringiensis

Best against : Fly, moth, and sawfly larvae (caterpillars)

Product Names: Bonide Dipel Thuricide ( )Product Names: Bonide, Dipel, Thuricide (not in Kelly registry)

Species and subspecies:

- Bacillus thuringiensis subsp. israelensis- Bacillus sphaericusp

- Bacillus thuringiensis subsp. aizawai

- Bacillus thuringiensis subsp. kurstakiBacillus thuringiensis subsp. kurstaki

- Bacillus thuringiensis subsp. tenebrionis

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Importance/Resistance

MoAGroup 2

MoAGroup 3

MoAGroup 4

MoAGroup 5

Finally Done!

MoANematode

MoAGroup 7 QuizIntroduction

Bacillus thuringiensis

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Importance/Resistance

MoAGroup 2

MoAGroup 3

MoAGroup 4

MoAGroup 5

Finally Done!

MoANematode

MoAGroup 7 QuizIntroduction Bt

Cry toxin protein

midgut cuticlemidgut epithelial cells

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Importance/Resistance

MoAGroup 2

MoAGroup 3

MoAGroup 4

MoAGroup 5

Finally Done!

MoANematode

MoAGroup 7 QuizIntroduction Bt

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htt // l d iki di / iki di / / / 3/B ill th i i i JPGhttp://upload.wikimedia.org/wikipedia/commons/e/e3/Bacillus_thuringiensis.JPG

http://images.google.com/biosci.sierracollege.edu

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Things to remember1. Insect resistance is caused by using insecticides within the

same group, sub-group, active ingredient, or product.

2. Rotate insecticides from different MoA main groups as part of your pest control program.

3. Tank mixing of chemicals for one target pest will result in resistance of two chemicals at once.

4. Contact county agent or UPPDL for spray recommendations.

5. Insecticides aren’t just “magical liquids…” they alter arthropod, mammalian, etc., bodily functions and can cause short- and long-term health problems. Always wear proper equipment when applying pesticides.

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Thank You; Questions?

Need Help?

Ryan Davis

ryan davis@biology usu [email protected]

Phone: 435-797-2435

Visit: utahpests.usu.edu

ID before you spray! Please send samplessend samples.

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How Resistance WorksGenetics play the key role in resistance

S tiblS = susceptible

R = resistant

p2 x p2 SASASBSB = about 100% of population

2pq x p2 RASASBSB = 0 0002%2pq x p R S S S = 0.0002%

p2 x 2pq SASARBSB = 0.0002%

4p2q2 SARASBRB = 0.00000002%

Richard Roush , The University of Melbourne, Melbourne, Victoria, AustraliaRotations, mixtures and managing cross-resistance. ESA, Nov. 2008

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Group 2: GABA-gated chloride channel antagonists: p g gcyclodiene, organochlorines, and phenylpyrazoles

Group 2 Examples:

- 2A: ENDOSULFAN, THIONEX

- 2B: FIPRONIL, TERMIDOR, MAXFORCE BAITS2B: FIPRONIL, TERMIDOR, MAXFORCE BAITS

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Group 2: GABA-gated chloride channel antagonists: l di hl i d h l lcyclodiene, organochlorines, and phenylpyrazoles

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Group 2: GABA-gated chloride channel antagonists: l di hl i d h l lcyclodiene, organochlorines, and phenylpyrazoles

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Group 2: GABA-gated chloride channel antagonists: cyclodiene, organochlorines and phenylpyrazolesy , g p y py

Side Effects: Hyperactivity, tremors, convulsions, staggering difficulty breathing nausea vomitingstaggering, difficulty breathing, nausea, vomiting, diarrhea, lack of coordination, unconsciousness

paralysis deathparalysis, death


Insecticides 2010 11

Insecticides 2010 11

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Insecticides India Ltd

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Insecticides 101

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Insecticides india limited

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Organic Insecticides

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Botanical Insecticides

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Insecticides China News

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utahpests.usu.edu · - Larvae attack just under the bark (cambium) ... Presence of abnormal growths (galls) ... activities, This publication is

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BlairHelsonBiological Insecticides

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Insecticides Act 1968

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