From labels and weed guides
Group 15 herbicides for common barnyardgrass in field corn
There are 17 Group 15 active-ingredient groups rated good or excellent for common barnyardgrass in field corn, with products labeled for field corn.
Group 15 mode of action (MOA) options
Group 15 is a herbicide mode of action (MOA) group. Treat it as one resistance-management check, not as the whole program.
Every listed product is labeled for field 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 2 weed guides, 17 active-ingredient groups are rated good or excellent for common barnyardgrass in field corn, showing the top 12 below.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Accordance 7EC EPA 94730-27; same active ingredients on 22 other branded products | acetochlor | 15 | ND Weed Guide 2026: E (PDF) |
| Definite EPA 83529-105; same active ingredients on 7 other branded products | acetochlor, clopyralid, and flumetsulam | 2, 4, 15 | ND Weed Guide 2026: E (PDF) |
| Double Header EPA 34704-1099; same active ingredients on 2 other branded products | acetochlor and mesotrione | 15, 27 | Ms Weed Guide 2025, ms corn post: G (PDF) |
| Anthem EPA 279-3450; same active ingredients on 1 other branded product | fluthiacet-methyl and pyroxasulfone | 14, 15 | ND Weed Guide 2026: E (PDF) |
| Fierce EPA 59639-193; same active ingredients on 1 other branded product | flumioxazin and pyroxasulfone | 14, 15 | ND Weed Guide 2026: G (PDF) |
| Outlook EPA 7969-156; same active ingredients on 1 other branded product | dimethenamid-p | 15 | ND Weed Guide 2026: G-E (PDF) |
| Zidua EPA 7969-338; same active ingredients on 1 other branded product | pyroxasulfone | 15 | Ms Weed Guide 2025, ms corn pre: E (PDF); ND Weed Guide 2026: E (PDF) |
| Acuron EPA 100-1466 | atrazine, bicyclopyrone, mesotrione, and metolachlor | 5, 15, 27 | Ms Weed Guide 2025, ms corn pre: E (PDF); Ms Weed Guide 2025, ms corn post: G (PDF); ND Weed Guide 2026: E (PDF) |
| Acuron Flexi EPA 100-1568 | bicyclopyrone, mesotrione, and metolachlor | 15, 27 | ND Weed Guide 2026: E (PDF) |
| Eptam 20-G EPA 10163-281 | eptc | 15 | ND Weed Guide 2026: E (PDF) |
| Halex GT EPA 100-1282 | glyphosate, mesotrione, and metolachlor | 9, 15, 27 | Ms Weed Guide 2025, ms corn post: E (PDF); ND Weed Guide 2026: E (PDF) |
| Impact CORE EPA 5481-648 | acetochlor and topramezone | 15, 27 | Ms Weed Guide 2025, ms corn post: G (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.