From labels and weed guides
Best herbicides for horseweed in sweet corn
For horseweed in sweet corn, the weed guides list 12 active-ingredient groups rated good or excellent, after checking that the products are labeled for sweet corn.
Horseweed control in sweet corn
Every listed product is labeled for sweet corn. Ratings are shown when each weed guide that rates this weed stays at good or excellent for the active-ingredient group. If a guide gives a range, the weaker end of the range has to be good or excellent.
Based on 1 weed guide, 12 active-ingredient groups are rated good or excellent for horseweed in sweet corn.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| AAtrex 4L EPA 100-497; same active ingredients on 31 other branded products | atrazine | 5 | ND Weed Guide 2026: E (PDF) |
| Comply EPA 100-1414-55467; same active ingredients on 13 other branded products | atrazine, mesotrione, and metolachlor | 5, 15, 27 | ND Weed Guide 2026: E (PDF); ND Weed Guide 2026: G-E (PDF) |
| Bite EPA 83529-74; same active ingredients on 8 other branded products | clopyralid | 4 | ND Weed Guide 2026: G-E (PDF) |
| COLT AS EPA 34704-1019; same active ingredients on 3 other branded products | clopyralid and fluroxypyr 1-methylheptyl ester | 4 | ND Weed Guide 2026: G-E (PDF) |
| Corsican EPA 7969-279-55467; same active ingredients on 2 other branded products | dimethenamid-p and saflufenacil | 14, 15 | ND Weed Guide 2026: G-E (PDF) |
| Acuron EPA 100-1466 | atrazine, bicyclopyrone, mesotrione, and metolachlor | 5, 15, 27 | ND Weed Guide 2026: G-E (PDF) |
| Acuron Flexi EPA 100-1568 | bicyclopyrone, mesotrione, and metolachlor | 15, 27 | ND Weed Guide 2026: G-E (PDF) |
| Callisto Xtra EPA 100-1359 | atrazine and mesotrione | 5, 27 | ND Weed Guide 2026: E (PDF) |
| Enlist Duo EPA 62719-649 | 2,4-d and glyphosate | 4, 9 | ND Weed Guide 2026: G-Ea (PDF) |
| IMPACTZ EPA 5481-612 | atrazine and topramezone | 5, 27 | ND Weed Guide 2026: G (PDF); ND Weed Guide 2026: G-E (PDF) |
| Sharpen EPA 7969-278 | saflufenacil | 14 | ND Weed Guide 2026: G-E (PDF) |
| Storen EPA 100-1735 | bicyclopyrone, mesotrione, metolachlor, and pyroxasulfone | 15, 27 | ND Weed Guide 2026: G-E (PDF) |
Rating legend: E=excellent, G=good, F=fair, P=poor, N=no control. A range such as G-E means the guide gives a range; 'a' after a rating (e.g., Ga) means the guide assumes its recommended additive.
Build the full program
Check crop, timing, state, resistance, and rotation in one plan before you make a recommendation.
Sources
Data from current labels and weed guides. Last source update: 2026-07-14.