Nothing here is label direction — the label is the law. These are notes from other applicators, moderated before they appear. Check the labeling accompanying the product and applicable state requirements.
Sign in through the portal or Create a free account to post. Comments are reviewed before they appear. Need a website for your pest-control business? See site plans.
IMPACT is a systemic herbicide used for the selective control or growth suppression of emerged broadleaf and grass weeds in corn (including field corn, seed corn, popcorn, and sweet corn). The active ingredient is Topramezone (0.044 lb per fl oz). It works by inhibiting carotenoid biosynthesis (HPPD inhibitor, Group 27). It can be used in both conservation and conventional tillage crop production systems. For optimal results, apply to emerged weeds that are actively growing and before they exceed labeled maximum sizes. The product can be applied as a single or sequential application, up to 45 days prior to corn harvest. It can also be tank-mixed with other herbicides to provide a broader spectrum of control. Note that IMPACT applications should include recommended spray additives for best performance. Always follow specific directions for tank-mixing and use appropriate nozzles to ensure adequate coverage and minimize drift.
| Target pest | Location | Rate | Unit | Label notes |
|---|---|---|---|---|
| emerged broadleaf and grass weeds | Outdoor | 0.75 to 2.0 fl oz per acre | fl oz per acre | Apply before weeds exceed labeled maximum size. Do not apply within 30 feet of sensitive plant community. |
| For pests | Amount | Per | Label notes |
|---|---|---|---|
| broadleaf and grass weeds | up to 2.0 fl oz | per acre | May be tank-mixed with other herbicides. Use recommended spray additives. When mixing with atrazine, use MSO or HSMOC adjuvants. |