University of Nebraska Entomology - Insecticides for Fall Armyworm Control in Field Corn

University of
Nebraska

Department
of Entomology

Insecticides for Fall Armyworm Control in Field Corn

Updated February 23, 2006 by Robert Wright

Economic Threshold:
An insecticide application may be economically justified when 75% of plants show leaf feeding and larvae are less than 1.25 inch long. Treatment to control larvae inside the ears is not effective (University of Missouri).

For more information, see NebGuide 1300, Insects That Feed on Corn Ears
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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R=Restricted-Use Product

Product
Name

Common
Name

Rate
(Formulation/Acre)

Restrictions/Comments

R

Ambush 2EC

permethrin

6.4-12.8 fl oz/acre

Apply in a min. of 2 gal of water per acre by air, 10 gal of water per acre by ground. Do not apply more than 0.6 lb ai per acre per season.

R Baythroid 2 cyfluthrin 2.8 fl oz/acre For 1st and 2nd instar only. PHI 21 days for grain or fodder. REI 12 hrs.

Lannate LV

methomyl

0.75-1.5 pints/acre

Lannate SP

methomyl

0.25-0.50 lb/acre

R

Mustang Max

zeta-cypermethrin

3.2-4.0 oz/acre

May be chemigated. Do not apply within 30 days of harvest for grain and fodder, and 60 days for forage. Apply in a min. spray volume of 2 gal per acre by air.

R

Pounce 25WP

permethrin

6.4-12.8 oz/acre

Apply in a min. of 2 gal of spray per acre by air, 10 gal of spray per acre by ground. Do not apply more than 0.6 lb ai per acre per season.

R

Pounce 3.2EC

permethrin

4-8 oz/acre

Apply in a min. of 2 gal of spray per acre by air, 10 gal of spray per acre by ground. Do not apply more than 0.6 lb ai per acre per season.

R Proaxis gamma-
cyhalothrin 2.56-3.84 fl oz/acre For control of 1st and 2nd instars only.

Sevin 4F

carbaryl

1-2 quarts/acre

Tracer

spinosad

2-3 fl oz/acre

Do not apply more than 6 fl oz per acre per year. Do not apply within 28 days of grain of fodder harvest or within 7 days of forage harvest.

R

Warrior

lambda-cyhalothrin

2.56-3.84 fl oz/acre

For control of first and second instar larvae only. Do not apply within 21 days of harvest. Apply in a min. spray volume of 2 gal/acre by air.

	Product Name	Common Name	Rate (Formulation/Acre)	Restrictions/Comments

R	Ambush 2EC	permethrin	6.4-12.8 fl oz/acre	Apply in a min. of 2 gal of water per acre by air, 10 gal of water per acre by ground. Do not apply more than 0.6 lb ai per acre per season.
R	Baythroid 2	cyfluthrin	2.8 fl oz/acre	For 1st and 2nd instar only. PHI 21 days for grain or fodder. REI 12 hrs.
	Lannate LV	methomyl	0.75-1.5 pints/acre
	Lannate SP	methomyl	0.25-0.50 lb/acre
R	Mustang Max	zeta-cypermethrin	3.2-4.0 oz/acre	May be chemigated. Do not apply within 30 days of harvest for grain and fodder, and 60 days for forage. Apply in a min. spray volume of 2 gal per acre by air.
R	Pounce 25WP	permethrin	6.4-12.8 oz/acre	Apply in a min. of 2 gal of spray per acre by air, 10 gal of spray per acre by ground. Do not apply more than 0.6 lb ai per acre per season.
R	Pounce 3.2EC	permethrin	4-8 oz/acre	Apply in a min. of 2 gal of spray per acre by air, 10 gal of spray per acre by ground. Do not apply more than 0.6 lb ai per acre per season.
R	Proaxis	gamma- cyhalothrin	2.56-3.84 fl oz/acre	For control of 1st and 2nd instars only.
	Sevin 4F	carbaryl	1-2 quarts/acre
	Tracer	spinosad	2-3 fl oz/acre	Do not apply more than 6 fl oz per acre per year. Do not apply within 28 days of grain of fodder harvest or within 7 days of forage harvest.
R	Warrior	lambda-cyhalothrin	2.56-3.84 fl oz/acre	For control of first and second instar larvae only. Do not apply within 21 days of harvest. Apply in a min. spray volume of 2 gal/acre by air.

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