University of
Nebraska		 Ent Web Logo Department
of Entomology

Insecticides for Corn Rootworm Larval Control in Field Corn

Updated April 4, 2008 by Robert Wright

Seed
Treatments

Planting-Time
Treatments

Post Plant or
Rescue Treatments
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.

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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
Prescribe
imidacloprid
1.34 mg ai/kernel
 Recommended for use against low
to moderate CRW populations.
3
ProShield
(Force ST)
tefluthrin
commercial rate
 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
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.
3 R
Numerous products
bifenthrin
0.3 fl oz/1000 row ft
Do not apply to soil where there is greater than 30% cover of crop residue remaining.
3 R
Capture 1.15G
bifenthrin
6.4-8.0 oz/1000 row ft
Apply as a T-band over open seed furrow. Use highest rate under heavy insect pressure. Do not apply as a T-band unless you can incorporate the granules.
1B R
Counter 15G
terbufos
8.0 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
tefluthrin
4.0-5.0 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 oz/1000 row ft
Field corn, popcorn, sweet corn and seed corn. T-band or in-furrow.
1B R
Fortress 2.5G
chlorethoxyfos
6.0-9.0 oz/1000 row ft
Field corn, popcorn, seed corn. Apply in-furrow or T-band. Increase the rate to control higher rootworm populations.
1B R
Fortress 5G
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,
Chlorpyrifos 15G
chlorpyrifos
8.0 oz/1000 row ft
Field corn, seed corn. Apply in-furrow, T-band or band.
1B
Lorsban 4E,
Chlorpyrifos 4E
chlorpyrifos
2.4 oz/1000 row ft
Field corn, seed corn. Apply in a T-band with a minimum spray volume of 5 GPA.
1B
Mocap 10G
ethoprop
10.5 oz/1000 row ft
Field corn. Apply as a 7-inch band over a closed seed furrow; incorporate with drag chains or similar equipment.
3 R Proaxis gamma-cyhalothrin 0.66 fl oz/1000 row ft Apply in a 5 to7 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
Thimet 15G
phorate
8.0 oz/1000 row ft
Apply as band or T-band. For use in field corn.
1B R
Phorate or
Thimet 20G
phorate
6.0 oz/1000 row ft
Apply as band or T-band. For use in field corn.
3 R Numerous products 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. This is a 2ee label and must be in possession of the applicator at the time of applicator.

Post-Plant or Rescue Treatments:

Mode of
Action
Product
Name
Common
Name
Rate
(Formulation)
Restrictions/Comments
1B R
Counter 15G
terbufos
8.0 oz/1000 row ft
For field corn and popcorn.
3 R
Force 3G
tefluthrin
4.0-5.0 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.
1A R
Furadan 4F
carbofuran
2.5 fl oz/1000 row ft
Field corn and popcorn. Apply as a post-emergent spray by banding over the row, or by side dressing or basal spraying both sides of the row. Control will generally be improved if the treatment is cultivated into the soil.
1B R
Lorsban 4E
chlorpyrifos
2-3 pints per 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
chlorpyrifos
8.0 oz/1000 row ft
Field corn, popcorn, and corn grown for seed. Apply basally and cover with soil.
1B
Mocap 10G
ethoprop
10.5 oz/1000 row ft
For use in field corn.
1B R
Thimet 15G
phorate
8.0 oz/1000 row ft
For use in field corn.
1B R
Thimet 20G
phorate
6.0 oz/1000 row ft
For use in field corn.
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