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Postemergence Treatments for Soil Cutworms in Soybeans

Updated December 21, 2011


Economic Threshold:
Treat when 5% of plants are damaged or cut, and larvae are less than 1 inch long.
Cutworms longer than one inch are likely to pupate (i.e. cease feeding) before causing significant additional damage.

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 3 = Sodium channel modulators
  • Group 4 = Nicotinic acetylcholine receptor agonists/antagonists; 4A = Neonicotinoids
R = Restricted-Use Product

Mode Of
Action
Product
Name
Common
Name
Rate
(Formulation/Acre)
Restrictions/Comments

3 R Ambush permethrin 3.2 - 6.4 fl oz PHI 60 days. Do not graze treated areas or harvest forage or hay.
3 R Arctic 3.2 EC permethrin 2 - 4 fl oz PHI 60 days. Do not graze treated areas or harvest forage for hay.
3 R Asana XL esfenvalerate 5.8 - 9.6 fl oz PHI 21 days. Do not exceed 0.2 lb ai. per acre per season. Do not feed or graze livestock on treated plants.
3 R Baythroid XL cyfluthrin 0.8 - 1.6 fl oz PHI 21 days for seed harvest. Dry vines (hay) and green foliage may be fed 15 days after last application.
3 R Brigade 2EC bifenthrin 2.1-6.4 fl oz Do not apply within 18 days of harvest.
1B, 3 R Cobalt chlorpyriphos + cyhalothrin Planting time or
Pre Emergence:
13 - 38 fl oz

Post Emergence:
13 - 26 fl oz
PHI 30 days. Maximum allowed per crop season 85 fl oz. Do not allow meat or dairy animals to graze in treated areas or feed treated forage, hay, and straw to meat or dairy animals.
3 R Delta Gold 1.5 EC deltamethrin 1.0 - 1.5 fl oz PHI 21 days. Maximum allowed per crop season 8.5 fl oz. Do not allow livestock to graze treated forage, or feed treated hay to livestock.
3, 4A R Endigo ZC lambda-cyhalothrin
thiamethoxam
3.5 - 4.0 fl oz PHI 30 days. Do not exceed a total of 9.0 fl oz per acre per growing season.
3 R Hero zeta-cypremethrin + bifenthrin 2.6 - 6.1 fl oz PHI 21 days. Do not make applications less than 30 days apart. Do not graze or harvest treated soybean forage, straw, or hay for livestock.
1A Larvin 3.2 thiodicarb 20-30 fl oz PHI 28 days. Use as a post emergence rescue treatment.
3, 4A R Leverage 360 imidacloprid + cyfluthrin 2.8 fl oz PHI 21 days for seed and 15 days for dry vines (hay) and green forage. Minimum of 7 day interval between applications. Maximum of 9.0 fl oz/acre per crop season.
1B R Lorsban Advanced chlorpyrifos 1 - 2 pts Do not apply more than 6 pints per acre per season. Do not apply last treatment within 28 days before harvest, nor apply last two treatments closer than 14 days apart. Do not allow livestock to graze in treated areas or otherwise feed treated forage, hay, and straw to meat or dairy animals.
1B R Methyl 4 EC methyl parathion 0.75 - 1 pt PHI 20 days for harvest and grazing.
3 R Mustang Max EC zeta-cypermethrin 1.8 - 4.0 fl oz PHI 21 days. Do not graze or harvest treated soybean forage, straw, or hay for livestock. Do not apply more than 0.15 lbs. a.i. per acre per season.
3 R Pounce 25 WP permethrin 3.2 - 6.4 oz PHI 60 days. Do not apply more than 0.4 lb ai per acre per season. Do not graze or feed soybean forage or hay.
3 R Proaxis gamma-cyhalothrin 1.92 - 3.20 fl oz PHI 45 days. Do not apply more than 0.48 pints per acre per season.
1A Sevin XLR Plus, 4 F carbaryl 1 - 1.5 qts Do not apply with 14 days of grazing or harvest for forage, or within 21 days of harvest. Do not apply more than 6 quarts per acre per crop.
1A Sevin 80 S carbaryl 1 1/2 - 1 7/8 lb Do not apply with 14 days of grazing or harvest for forage, or within 21 days of harvest. Do not apply more than 7.5 lb per acre per crop.
3 R Warrior w/
Zeon Technology,
Silencer
lambda-
cyhalothrin
1.92 - 3.20 fl oz PHI 30 days. Do not graze or harvest treated soybean forage, straw or hay for livestock feed.
3 R Warrior II w/
Zeon Technology
lambda-
cyhalothrin
0.96 - 1.60 fl oz PHI 30 days. Do not graze or harvest treated soybean forage, straw or hay for livestock feed.