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Insecticides for Control of Soybean Aphids

Updated February 20, 2012


Economic Threshold:

The recommended threshold for late vegetative through R5 stage soybeans is 250 aphids per plant (field average) with 80% of the plants infested and populations increasing.

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

4A Alias 4F imidacloprid 1.5 fl oz PHI 7 days. Maximum allowed per crop season 4.5 fl oz
3 R Asana XL esfenvalerate 5.8 - 9.6 fl oz Do not exceed 0.2 lb ai. per acre per season. Do not graze livestock on treated plants. 21 day harvest interval.
3 R Baythroid XL cyfluthrin 2.0 - 2.8 fl oz Maximum of 2.8 fl oz/A may be applied within a 7-day period. Total applications may not exceed 11.2 fl oz per cropping season.
3 R Brigade 2EC,
Fanfare 2EC
bifenthrin 2.1-6.4 fl oz Do not apply within 18 days of harvest.
1B, 3 R Cobalt chlorpyriphos + cyhalothrin 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 1.5 - 2.4 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.
1B Dimethoate 400 dimethoate 1 pt 21-day harvest interval. Do not feed or graze within 5 days of last application.
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 4.0 - 10.3 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 R Lannate LV methomyl 0.5 - 1 pt PHI 14 days. 3 day forage interval. 12 day hay interval. Do not apply more than 1.35 lb ai. per acre during a growing season or more than 3 applications per crop.
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. Do not allow livestock to graze in treated acres or otherwise feed treated forage, hay, or 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 2.8 - 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 corntrol or later-season applications.
1B R Penncap-M methyl parathion 1 - 3 pts Do not make more than 2 applications per season. Do not use within 30 days of harvest or grazing.
4A Poncho/Votivo clothianidin

Pre-treated seed.
0.13 mg ai/kernel

3 R Proaxis gamma-cyhalothrin 1.92 - 3.2 fl oz Use a rate in the lower end of the rate range for early season applications and/or lighter populations. Do not apply within 45 days of harvest or more than 0.48 pints per acre per season.
3A, 1B R Stallion zeta-cypermethrin,
chlorpyrifos
5.0 - 11.75 fl oz PHI is 28 days. 14 days between applications, no more than 3 applications per season.
3A R Steed zeta-cypermethrin,
bifenthrin
2.5 - 4.7 fl oz PHI is 21 days. 30 days between applications, no more than 28.1 fl oz per acre per season.
3A, 4A R Swagger bifenthrin,
imidacloprid
7.6 - 12.2 fl oz PHI is 18 days. 30 days between applications, no more than 2 applications per season.
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.