Commonly Used Pesticides In Montana - By County
To Montana Pesticide Education and Safety Program
| Madison/Jefferson County | ||
| Site | Pesticide | Target Pest |
| Range/pasture/hay | Tordon (H) picloram |
Knapweed, Canada Thistle |
| Range/pasture/hay | 2,4-D (H) | Most broadleaf weeds |
| Range/pasture/hay | Escort (H) Metsulfuron Methyl |
Whitetop (Hoary Cress), mustards |
| Range/pasture/hay | Malathion (I) | Grasshoppers |
| Range/pasture/hay | Sevin (I) Carbaryl |
Grasshoppers |
| Range/pasture/hay | Dimilin
(IGR) Diflubenzuron |
Immature grasshoppers |
| Range/pasture/hay | Roundup (H) Glyphosate |
Weeds, Spot spray |
| Range/pasture/hay | Curtail (H) Clopyralid & 2,4-D |
Canada Thistle |
| Residential | Roundup (H) Glyphosate |
Weeds, Spot spray |
| Residential | 2,4-D (H) | Most broadleaf weeds |
| Residential | Sevin (I) Carbaryl |
Aphids, tree bugs |
| Residential | Malathion (I) | Aphids, tree bugs |
| Cropland | None Submitted | |
| Powder River County | ||
| Site | Pesticide | Target Pest |
| Range/pasture/hay | Tordon (H) picloram |
Knapweed, Canada Thistle |
| Tordon & 2,4-D | Leafy spurge, Canada thistle, spotted knapweed, Russian knapweed; | |