Insecticides
379
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Safety - page 25 • First aid - page 33 • Resistance management - page 41
Insecticide Group Classification by Mode of Action
Mode of action
Chemical family
Active ingredients
Found in
Group 1A, 1B
Acetylcholinesterase inhibitors.
These chemicals inhibit an
enzyme, interrupting the
transmission of nerve impulses.
Carbamates
carbaryl
ECO Bran, Sevin XLR
(
Group 1A)
methomyl
Lannate
Organophosphates
acephate
Orthene 75%
(
Group 1B)
chlorpyrifos
Citadel 480 EC, Lorsban 4E,
Nufos 4E, Pyrinex 480 EC
diazinon
Agrox B-2*, Agrox CD*, DCT*,
Diazinon
dimethoate
Cygon 480, Cygon 480 EC,
Lagon 480E
malathion
Malathion
methamidophos
Monitor
naled
Dibrom
phorate
Thimet
phosmet
Imidan 50 WP Instapak
terbufos
Counter
Group 2A
These chemicals interfere
with GABA receptors of insect
neurons, leading to repetitive
nervous damage.
Chlorinated
cyclodienes
endosulfan
Thiodan, Thionex EC
Group 3
These chemicals act as a
axonic poison by interfering
with the nervous system,
leading to paralysis.
Synthetic
pyrethroids
cyhalothrin-lambda
Matador 120EC, Silencer 120EC
cypermethrin
Ripcord
deltamethrin
Concept, Decis
permethrin
Pounce, Ambush 500EC, Perm-UP
Group 4
These chemicals binds to
nicotinic acetylcholine receptor,
disrupting nerve transmission.
Chloronicotines
acetamiprid
Assail 70 WP
clothianidin
Poncho*, Titan ST, Clutch*
imidacloprid
Admire 240, Alias 240 SC, Concept
Gaucho 480*, Gaucho CS FL*,
Grapple, Grapple
2
thiomethoxam
Actara, Helix XTra*
Group 8B
Unknown
Fumigant
aluminum phosphide
Phostoxin
Group 9C
Unknown
Selective
homopteran
feeding blockers
flonicamid
Beleaf
(
continued)
*
These products are Seed Treatments and may also contain a fungicide. Information on fungicide mode of action can be found in the Seed Treatment
section.