From labels and weed guides
Best herbicides for annual smartweed in seed corn
For annual smartweed in seed corn, the weed guides list 23 active-ingredient groups rated good or excellent, after checking that the products are labeled for seed corn.
Annual Smartweed control in seed corn
Every listed product is labeled for seed 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, 23 active-ingredient groups are rated good or excellent for annual smartweed in seed corn, showing the top 12 below.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Alligare Dicamba 4 EPA 81927-55; same active ingredients on 32 other branded products | dicamba | 4 | ND Weed Guide 2026: E (PDF) |
| ARGOS EPA 74530-71; same active ingredients on 22 other branded products | mesotrione | 27 | ND Weed Guide 2026: E (PDF) |
| Bonedry EPA 82557-1; same active ingredients on 13 other branded products | paraquat | 22 | ND Weed Guide 2026: E (PDF) |
| Comply EPA 100-1414-55467; same active ingredients on 7 other branded products | atrazine, mesotrione, and metolachlor | 5, 15, 27 | ND Weed Guide 2026: E (PDF); ND Weed Guide 2026: G-E (PDF) |
| Basagran EPA 66330-413; same active ingredients on 5 other branded products | bentazon | 6 | ND Weed Guide 2026: E (PDF) |
| Staunch II EPA 62719-679-55467; same active ingredients on 4 other branded products | acetochlor, clopyralid, and flumetsulam | 2, 4, 15 | ND Weed Guide 2026: G-E (PDF) |
| Aquesta 4 F EPA 91234-32; same active ingredients on 3 other branded products | sulfentrazone | 14 | ND Weed Guide 2026: G-E (PDF) |
| BROX 2EC EPA 42750-48; same active ingredients on 3 other branded products | bromoxynil | 6 | ND Weed Guide 2026: G-E (PDF) |
| Orador EPA 91234-324; same active ingredients on 3 other branded products | acetochlor, clopyralid, and mesotrione | 4, 15, 27 | ND Weed Guide 2026: 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: E (PDF) |
| Distinct EPA 7969-150; same active ingredients on 2 other branded products | dicamba and diflufenzopyr | 4, 19 | ND Weed Guide 2026: E (PDF) |
| Acuron EPA 100-1466 | atrazine, bicyclopyrone, mesotrione, and metolachlor | 5, 15, 27 | ND Weed Guide 2026: 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.
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Sources
Data from current labels and weed guides. Last source update: 2026-07-14.