From labels and weed guides
Group 15 herbicides for common barnyardgrass in cotton
There are 7 Group 15 active-ingredient groups rated good or excellent for common barnyardgrass in cotton, with products labeled for cotton.
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 cotton. 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, 7 active-ingredient groups are rated good or excellent for common barnyardgrass in cotton.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Arrest CS EPA 83529-84; same active ingredients on 3 other branded products | acetochlor | 15 | Ms Weed Guide 2025, ms cotton pre: G (PDF); Ms Weed Guide 2025, ms cotton post: G (PDF); ND Weed Guide 2026: E (PDF) |
| Epitome EPA 2749-636; same active ingredients on 2 other branded products | eptc | 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) |
| Zidua EPA 7969-338; same active ingredients on 1 other branded product | pyroxasulfone | 15 | Ms Weed Guide 2025, ms cotton post: E (PDF); ND Weed Guide 2026: E (PDF) |
| Anthem Flex EPA 279-3464 | carfentrazone-ethyl and pyroxasulfone | 14, 15 | Ms Weed Guide 2025, ms cotton post: E (PDF) |
| Outlook EPA 7969-156 | dimethenamid-p | 15 | Ms Weed Guide 2025, ms cotton post: G (PDF); ND Weed Guide 2026: G-E (PDF) |
| Sequence EPA 100-1185 | glyphosate and metolachlor | 9, 15 | Ms Weed Guide 2025, ms cotton post: 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.