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Nebraska		 Ent Web Logo Department
of Entomology

Suggested Treatments for Adult Corn Rootworm in Field Corn

Updated January 4, 2007 by Robert Wright

For more information on corn rootworm, consult the following publications: Note: Poor control due to insecticide resistance has been observed with products containing methyl parathion and carbaryl in Phelps and York counties (Nebraska) and surrounding areas. See NebFact 99-366, Larval Western Corn Rootworm Insecticide Resistance in Nebraska, and NebFact 99-367, Adult Western Corn Rootworm Resistance in Nebraska.

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 3 = Sodium channel modulators
R = Restricted-Use Product
FS = Feeding Stimulant
Mode of
Action
Product
Name
Common
Name
Rate
(Formulation/Acre)
Restrictions/Comments
3 R Ambush 2EC permethrin 6.4-12.8 fl oz Field corn, popcorn, seed corn. Apply prior to brown silk stage. Apply a minimum of 1 gal per acre spray volume when applying by air. May be chemigated.
3 R Asana XL esfenvalerate 5.8-9.6 fl oz Field corn. May be chemigated.
3 R Baythroid 2 cyfluthrin 1.6-2.8 fl oz PHI 21 days for grain or fodder.
REI 12 hrs.
3 R Capture 2EC bifenthrin 2.1-6.4 fl oz Field corn (grain and silage), popcorn and seed corn. Apply in a minimum of 2 - 5 gallons of spray per acre by aircraft or 10 gallons per acre with ground equipment. Do not apply within 30 days of harvest.
1B Cygon 400 dimethoate 2/3-1 pint Labeled for field corn only.
FS Invite EC cucurbitacin 12 fl oz Invite EC contains cucurbitacin, a corn rootworm specific feeding stimulant/arrestant. Apply in combination with 4 oz Penncap-M insecticide or other insecticides. Use Invite with caution in areas where adult corn rootworm organophosphate (OP) resistance has been documented. Control may not always be optimal in OP resistance areas if Invite is tank-mixed with methyl parathion or carbaryl.
1B R Lorsban 4E chlorpyrifos 1-2 pints Field corn, seed corn. May be chemigated.
1B Malathion 57EC malathion 1.5 pints  
1B Malathion ULV 95% malathion 4-8 fl oz  
3 R Mustang Max zeta-cypermethrin 2.72-4.0 oz Apply in a minimum of 2 gallons/acre by air and 10 gallons/acre by ground
1B R Penncap-M

(Other Formulations)		 methyl parathion 1.5-2 pints

0.25 lb ai 		Field corn, popcorn, specialty corn. Use a minimum of 1 gal per acre spray volume when applying by air.
3 R Pounce 3.2EC permethrin 4-8 fl oz Field corn, popcorn, seed corn. Apply a minimum of 2 gal per acre spray volume when applying by air. May be chemigated.
3 R Proaxis gamma-
cyhalothrin 		2.56-3.84 fl oz/acre When applying by air, apply in a minimum of 2 gallons of water/acre.
1A Sevin XLR carbaryl 1-2 quarts Field corn and popcorn. See bee caution on label. May be chemigated.
1A Sevin 4-Oil ULV carbaryl 1 quart Do not apply more than twice.
3 R Warrior 1EC lambda- cyhalothrin 2.56-3.84 fl oz Field corn, popcorn and seed corn. May be chemigated. When applying by air use a minimum of 2 gallons of water per acre.
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