Insecticides for Control of Alfalfa Weevil Larvae
Updated March 2, 2006 by Keith Jarvi. Check here for Department of Entomology updates
- For more information about the biology and management of the alfalfa weevil, consult NebGuide G94-1208-A, Managing the Alfalfa Weevil and
- Alfalfa Insects I Extension Circular 1576 (*pdf)
This list is not inclusive. See Doane's Agricultural Reports "greenbook" at: 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: | ||||
|
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Mode of Action |
Product
Name |
Common
Name |
Rate
(Formulation/acre) |
Restrictions/Comments
|
---|---|---|---|---|
3 R | Ambush 2E, 25W or 25WP |
permethrin | 6.4 - 12.8 oz | At 6.4 oz, no preharvest interval. Over 6.4 oz, preharvest interval of 14 days. |
3 R | Arctic 3.2EC | permethrin | 4 - 8 oz | At 4 oz or less, no preharvest interval. Over 4 oz, preharvest interval of 14 days. |
3 R | Baythroid XL | cyfluthrin | 1.6 - 2.8 oz | Preharvest interval of 7 days. |
1B R | Chlorpyrifos 4E | chlorpyrifos | 1 - 2 pts | At 1.0 pt, no grazing or harvest for 14 days. Above 1.0 pt, no grazing or harvest for 21 days. |
1B | Cythion 5 | malathion | 1.5 - 2.0 pts | No preharvest interval. |
1B | Cythion 8 | malathion | 1.25 - 1.5 pts | No preharvest interval. |
1A R | Furadan 4 F | carbofuran | 0.5 - 2.0 pts | At 0.5 pts, preharvest interval of 7 days. At 1.0 pt, preharvest interval of 14 days. At 2.0 pts, preharvest interval of 28 days. |
1B R | Guthion 3 | azinphos-methyl | 0.66 - 2.0 pts | At 0.66-1.0 pt, preharvest interval of 14 days. At 1.0-1.3 pts, preharvest interval of 16 days. Over 1.3 pts, preharvest interval of 21 days. |
1B R | Imidan 70-WSB | phosmet | 1.3 lbs | Preharvest interval of 7 days. |
1A R | Lannate LV | methomyl | 3.0 pts | No preharvest interval. For grazing or feed, wait 7 days. |
1A R | Lannate SP | methomyl | 1 lb | No preharvest interval. For grazing or feed, wait 7 days. |
1B R | Lorsban 4 E | chlorpyrifos | 1 - 2 pts | At 1.0 pint, preharvest interval of 14 days. Over 1.0 pint, preharvest interval of 21 days. |
1B | Malathion 57 EC | malathion | 1.5 - 2.25 pts | No preharvest interval. |
1B R | Methyl Parathion 4 E | methyl parathion | 0.5 - 1.0 pt | Preharvest interval of 15 days. |
3 R | Mustang Max | zeta-cypermethrin | 2.24 - 4.0 oz | Preharvest interval of 3 days. |
1B R | Nufos 4E | chlorpyrifos | 1 - 2 pts | At 1.0 pt, no grazing or harvest for 14 days. Above 1.0 pt, no grazing or harvest for 21 days. |
1B R | Penncap-M | methyl parathion | 2 - 3 pts | Preharvest interval of 15 days. |
3 R | Permethrin 3.2EC | permethrin | 4 - 8 oz | At 4 oz or less, no preharvest interval. Over 4 oz, preharvest interval of 14 days. |
3 R | Pounce 3.2 E | permethrin | 4 - 8 oz | At 4 oz, no preharvest interval. Over 4 oz, preharvest interval of 14 days. |
3 R | Pounce 25 WP | permethrin | 6.4 - 12.8 oz | At 6.4 oz, no preharvest interval. Over 6.4 oz, preharvest interval of 14 days. |
3 R | Pounce WSB | permethrin | 0.1 - 0.2 lb | At 0.1 lb, no preharvest interval. Over 0.1 lb, preharvest interval of 14 days. |
3 R | Proaxis | gamma- cyhalothrin |
2.56 - 3.84 oz | PHI - 1day forage, 7 days hay. |
1A | Sevin 4 F, XLR | carbaryl | 1.5 qts | Preharvest interval of 7 days. |
1A | Sevin 80 WSP | carbaryl | 1.88 lbs | Preharvest interval of 7 days. |
3 R | Silencer | lambda- cyhalothrin |
2.56 - 3.84 oz | Preharvest interval of 1 day for forage, 7 days for hay. |
3 R | Taiga Z | lambda- cyhalothrin |
2.56 - 3.84 oz | Preharvest interval of 1 day for forage, 7 days for hay. |
3 R | Warrior | lambda- cyhalothrin |
2.56 - 3.84 oz | Preharvest interval of 1 day for forage, 7 days for hay. |