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Insecticide Treatments for Corn Rootworm Larvae in Field Corn

Updated December 19, 2011

This list is not inclusive. See http://www.greenbook.net or other resources for additional registrations.
This information is presented in abbreviated form. Be sure to consult the label for additional information and restrictions.

IRAC Mode of Action Classification:
  • Group 1 = Acetylcholine esterase inhibitors; 1A = Carbamates, 1B = Organophosphates
  • Group 2 = GABA-gated chloride channel antagonists; 2B = Phenylpyrazoles (Fiproles)
  • Group 3 = Sodium channel modulators
  • Group 4 = Nicotinic acetylcholine receptor agonists/antagonists; 4A = Neonicotinoids
R = Restricted-Use Product * = Suitable for chemigation ai=active ingredient REI = Re-Entry Interval

Seed Treatments:

Mode Of
Action
Product
Name
Common
Name
Rate
(Formulation)
Restrictions/Comments
4A
Cruiser 5FS
thiamethoxam
1.125 mg ai/kernel

Recommended for use against low to moderate CRW populations.
4A
Poncho 1250
clothianidin
1.25 mg ai/kernel

Recommended for use against low to moderate CRW populations.
4A
Macho, Senator
imidacloprid
1.34 mg ai/kernel

Recommended for use against low to moderate CRW populations.

Planting Time Treatments:

Mode Of
Action
Product
Name
Common
Name
Rate
(Formulation)
Restrictions/Comments
1B, 3 R
Aztec 2.1G
tebupirimphos + cyfluthrin
6.7 oz/1000 row ft

Apply in-furrow, band or T-band.
For use in field corn, seed corn, popcorn, and corn grown for silage.
1B, 3 R
Aztec 4.67G
via SmartBox Systems
tebupirimphos + cyfluthrin
3 oz/1000 row ft

May be applied as a band, T-band, or in-furrow application.
Must be applied with SmartBox system.
For use on field corn, popcorn, corn grown for seed or silage.
3R

Brigade 2EC,
Fanfare 2EC

 bifenthrin 0.30 fl oz/1000 row ft

Apply as a 5-7 inch t-band treatment over an open seed furrow. Do not apply to soil where there is greater than 30% cover of crop residue remaining.
3 R
Capture LFR
bifenthrin

0.39-0.49 fl oz/1000 row ft

Do not apply to soil where there is greater than 30% cover of crop residue remaining.
1B R

Counter 15G,
via Lock'n Load and
SmartBox Systems
terbufos
8 oz/1000 row ft
Apply in-furrow, T-band, or band. For field corn and popcorn.
1B R

Counter 20G,
via SmartBox Systems
terbufos
4.5-6.0 oz/1000 row ft
Apply in-furrow, T-band, or band. For field corn and popcorn.
1B, 3 R
Defcon 2.1G
phosphorothionate + cyfluthrin
6.7 oz/1000 row ft

Apply in a band behind the press wheel with incorporation.
For field, sweet, seed, silage and popcorn.
3 R

Force 3G,
via Conventional and
SmartBox Systems
tefluthrin
4-5 oz/1000 row ft
Field corn, popcorn and seed corn. Banded, T-band, or in-furrow.
3 R
Force CS
tefluthrin
0.46-0.57 fl oz/1000 row ft

Field corn, popcorn, sweet corn and seed corn. T-band or in-furrow.
1B R
Fortress 5G
via SmartBox System
chlorethoxyfos
3.0-4.5 oz/1000 row ft

For use only with SmartBox closed handling application system. Field corn, popcorn, seed corn. Apply in-furrow or T-band. Increase the rate to control higher rootworm populations.
1B

Lorsban 15G,
via Conventional and
SmartBox Systems
Chlorpyrifos 15G

chlorpyrifos
8 oz/1000 row ft
Field corn, seed corn. Apply in-furrow, T-band or band.
1B

Lorsban 4E,
Chlorpyrifos 4E

chlorpyrifos
2.4 fl oz/1000 row ft

Field corn, seed corn.
Apply in a T-band with a minimum spray volume of 5 GPA.
3 R Proaxis gamma-cyhalothrin 0.66 fl oz/1000 row ft

Apply in a 5 to 7 inch t-band or in-furrow in a minimum spray volume of 3 GPA.
2B R
Regent 4SC
fipronil
0.24 fl oz/1000 row ft

Field corn. Apply in-furrow with a minimum of 1 gal of water or liquid fertilizer per acre. Do not apply more than 4.2 fluid ounces of Regent 4 SC per acre. Do not apply to sweet corn or popcorn. Do not apply on row spacing less than 30 inches.
1B R

Phorate or
Thimet 20G, via Lock'n Load and
SmartBox Systems
phorate
4.5-6.0 oz/1000 row ft
Apply as band or T-band. For use in field corn.
3 R

SmartChoice 5G
via SmartBox System

chlorethoxyfos
and bifenthrin

 3-5 oz/1000 row ft Do not make more than one application per year.
3 R

Warrior w/ Zeon Technology,
Silencer

 lambda-cyhalothrin 0.66 fl oz/1000 row ft

Apply in-furrow, band or T-band.
For field corn, popcorn, seed corn and sweet corn.
Recommended for light to moderate infestations.
3 R Warrior II w/ Zeon Technology lambda-cyhalothrin 0.33 fl oz/1000 row ft

Apply in-furrow, band or T-band.
For field corn, popcorn, seed corn and sweet corn.
Recommended for light to moderate infestations.

Post-Plant or Rescue Treatments:

Mode Of
Action
Product
Name
Common
Name
Rate
(Formulation)
Restrictions/Comments
1B, 3 R Cobalt

chlorpyrifos and
gamma cyhalothrin

 38-42 fl oz/acre Application timing should coincide with 2nd instar larvae.
1B R

Counter 15G,
via Lock'n Load and
SmartBox Systems
terbufos
8 oz/1000 row ft
For field corn and popcorn.
1B R

Counter 20G,
via SmartBox Systems
terbufos
6 oz/1000 row ft
For field corn and popcorn.
3 R

Force 3G,
via Conventional and
SmartBox Systems
tefluthrin
4-5 oz/1000 row ft

Field corn, popcorn and seed corn. Apply granules to the base of the plant on both sides and cultivate in. Do not use if you cannot incorporate the granules. Use Force only once per crop.
1B R
Lorsban 4E
chlorpyrifos
2-3 pts/acre

Apply through sprinkler irrigation systems with enough water to wet the root zone to the depth that root protection is needed. Timing should coincide with appearance of second instar larvae.
1B

Lorsban 15G,
via Conventional and
SmartBox Systems
chlorpyrifos
8 oz/1000 row ft

Field corn, popcorn, and corn grown for seed.
Apply basally and cover with soil.
1B R

Thimet 20G,
via Lock'n Load and
SmartBox Systems
phorate
4.5-6.0 oz/1000 row ft
For use in field corn.