North Dakota State University, Fargo North Dakota
Extension Entomologist: Janet Knodel
May 2003
There have been questions regarding insecticides labeled for grasshopper control in roadside rights of way. Below is a list of insecticides labeled for such use that allow for use of the forage and also a list of insecticides that do not. The haying/grazing issue is very important., particularly if a community coordinated grasshopper control program is being implemented.
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Insecticide |
Labeled Sites |
Restrictions |
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Insecticides that allow grazing or cutting for Hay |
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carbaryl (various formulations) |
Non-cropland - CRP, Set-Aside, Wasteland, Rights-of-Way, Hedgerows, Ditchbanks, Roadsides |
Do not apply within 14 days of grazing or harvest for forage or hay |
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Dimilin |
RUP |
Non-crop areas (field border, fence rows, roadsides, farmsteads, ditchbanks, wasteland, CRP) |
No time limitation on grazing or cutting. |
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Malathion |
Non-agricultural lands (Wasteland, Roadside, Soil Bank (Not Grazed) |
Some formulations DO have grazing restrictions. |
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Malathion ULV |
Uncultivated non-agricultural land (wasteland, roadsides) |
No time limitation on grazing or cutting. |
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Insecticides that DO NOT allow grazing or cutting for hay |
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Acephate 75% |
Non-crop areas (field borders, fencerows, roadsides, ditchbanks, borrow pits) |
Do not graze or feed vegetation cut from treated areas. |
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Asana XL |
RUP |
Non-Cropland (excluding public land such as forests, parks, or recreational). For use on non-cropland adjacent to tilled areas to control migrating grasshoppers. |
Do not feed treated crop to livestock. |
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Warrior (SLN) |
RUP/ SLN |
Non-Cropland: Agricultural areas that include right-of-ways, barrier strips and fence rows that are adjacent to crop outlets registered for the use of Warrior T. |
Feeding hay or grazing livestock in treated areas is prohibited. |
RUP - Restricted Use Product
SLN - Special Local Need Label
The 2004 North Dakota Insect Management Guide has a current listing of insecticides.
There have been some thoughts about using insecticides approved for use in alfalfa to treat road-sides where alfalfa is interspersed with grasses and other vegetation. This is not a proper use. In fact, some of these alfalfa labels specifically state that the products are not even to be used in mixed stands with intentionally-grown forage grasses. So be careful with stretching label interpretations.
return to the NDSU
Grasshopper page
return to the NDSU
Insect Updates
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Department of Entomology, 202 Hultz Hall North Dakota State University, Fargo North Dakota
Extension Entomologist: Janet Knodel |
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