From labels and weed guides
Group 15 herbicides for common barnyardgrass in alfalfa
There are 2 Group 15 active-ingredient groups rated good or excellent for common barnyardgrass in alfalfa, with products labeled for alfalfa.
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 alfalfa. 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, 2 active-ingredient groups are rated good or excellent for common barnyardgrass in alfalfa.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Epitome EPA 2749-636; same active ingredients on 3 other branded products | eptc | 15 | ND Weed Guide 2026: E (PDF); WinField Crop Protection 2026, alfalfa forage legumes: E (PDF) |
| Venturous 3ME EPA 524-591-55467; same active ingredients on 1 other branded product | acetochlor | 15 | 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.
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.