Postemergence Treatments for Soil Cutworms in Soybeans

Updated February 9, 2017


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 https://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
  • Group 28 = Ryanodine receptor modulators, Diamides
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 for forage or hay.

3 R Arctic 3.2 EC permethrin 2 - 4 fl oz

PHI 60 days. Do not graze treated areas or feed forage for hay.

3 R Asana XL esfenvalerate 5.8 - 9.6 fl oz

PHI 21 days. Do not feed or graze livestock on treated fields.

3 R Baythroid XL cyfluthrin 0.8 - 1.6 fl oz

PHI 21 days for seed. Green foliage may be fed 15 days after last application. Maximum 2.8 fl oz/acre allowed in 7 day interval, maximum 11.2 fl oz per crop season.

3, 28 R Besiege lambda-cyhalothrin,
chlorantraniliprole
5 - 8 fl oz

PHI 30 days. Do not graze or harvest treated soybean forage, straw, or hay for livestock feed.

3 R Brigade 2EC bifenthrin 2.1-6.4 fl oz

PHI 18 days.

1B, 3 R Cobalt chlorpyrifos
and cyhalothrin

Planting time or
Pre Emergence:
13 - 38 fl oz

Post Emergence:
13 - 26 fl oz

PHI 30 days. Maximum allowed per crop season is 85 fl oz/acre. Do not allow meat or dairy animals to graze in treated areas or feed treated soybean forage, hay, and straw to meat or dairy animals.

1B, 3 R Cobalt
Advanced
chlorpyrifos
and lambda-cyhalothrin

Planting time or
Pre Emergence:
11 - 38 fl oz

Post Emergence:
11 - 26 fl oz

PHI 30 days. Maximum allowed per crop season is 85 fl oz/acre. Do not allow meat or dairy animals to graze in treated areas or feed treated soybean 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 is 8.5 fl oz/acre. Do not allow livestock to graze treated forage, or feed treated hay to livestock.

3, 4A R Endigo ZC

lambda-cyhalothrin
and 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. Do not graze or harvest treated soybean forage, straw, or hay for livestock feed.

3 R Fastac EC alpha-cyhalothrin 1.3 - 3.8 fl oz

PHI 21 days. Do not graze or harvest treated soybean forage, straw, or hay for livestock feed.

3 R Hero zeta-cypremethrin
and 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 feed.

1A Larvin 3.2 thiodicarb 20-30 fl oz

PHI 28 days. Do not feed forage, hay, or straw to livestock.

3, 4A R Leverage 360 imidacloprid
and 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,
Nufos 4E
chlorpyrifos 1 - 2 pts

PHI 28 days. Do not apply more than 3 applications of Lorsban Advanced or other product containing chlorpyrifos per year. Limit 6 pints per acre per season. Do not make a second application of Lorsban Advanced within 14 days of the first application. Do not allow meat or dairy animals to graze in treated areas or otherwise feed treated soybean 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. Do not make more than 2 applications per year.

3 R Mustang Max EC zeta-cypermethrin 1.28 - 4.0 fl oz

PHI 21 days. Do not graze or harvest treated soybean forage, straw, or hay for livestock feed. Use higher recommended dosage for increased pest pressure, increased residual pest control or later-season applications.

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 graze or harvest treated soybean forage, straw, or hay for livestock feed.

3 R Respect zeta-cypermethrin 1.28 - 4.0 fl oz

PHI 21 days. Do not graze or harvest treated soybean forage, straw, or hay for livestock feed.

1A Sevin XLR Plus, 4 F carbaryl 1 - 1.5 qts

PHI 21 days for grain. PHI 14 days for grazing and forage. Do not apply more than 6 quarts per acre per crop.

1A Sevin 80 S carbaryl 1 1/2 - 1 7/8 lb

PHI 21 days for grain. PHI 14 days for grazing and forage. Do not apply more than 7.5 lb per acre per crop.

3A, 1B R Stallion zeta-cypermethrin
and chlorpyrifos
3.75 - 11.75 fl oz

PHI 28 days. Do not make applications of Stallion less than 14 days apart. Do not make more than 3 applications per season. Do not allow meat or dairy animals to graze in treated areas or otherwise feed treated soybean forage, hay, and straw to meat or dairy animals.

3A R Steed zeta-cypermethrin
and bifenthrin
2.5 - 3.5 fl oz

PHI is 21 days. Do not make applications less than 30 days apart and do not apply more than 28.1 fl oz per acre per season. Do not graze or harvest treated soybean forage, straw or hay for livestock feed.

3A, 4A R Swagger bifenthrin and
imidacloprid
7.6 - 12.2 fl oz

PHI 18 days. Minimum interval between applications: 30 days. Apply a maximum of 2 applications per season.

3A, 4A R Triple Crown

zeta cypermethrin,
bifenthrin and
imidacloprid

3.5 - 4.8 fl oz

PHI 21 days. Minimum application interval: 30 days. Do not graze or harvest treated soybean forage, straw or hay for livestock feed.

1B, 3 R Tundra Supreme

chlorpyrifos
and bifenthrin

5.6 - 16.8 fl oz

PHI 28 days. Do not allow meat or dairy animals to graze in treated areas or otherwise feed treated soybean forage, hay and straw to meat or dairy animals.

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.