From labels and weed guides
Group 2 herbicides for kochia (als-resistant) in soybeans
There are 4 Group 2 active-ingredient groups rated good or excellent for kochia (als-resistant) in soybeans, with products labeled for soybeans.
Group 2 mode of action (MOA) options
Group 2 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 soybeans. 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, 4 active-ingredient groups are rated good or excellent for kochia (als-resistant) in soybeans.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Antares Prime EPA 82534-10-5905; same active ingredients on 8 other branded products | cloransulam-methyl and sulfentrazone | 2, 14 | Sd Soybean Weed Guide 2026, sd soybean: G (PDF) |
| Authority Assist EPA 279-3330; same active ingredients on 5 other branded products | imazethapyr and sulfentrazone | 2, 14 | Sd Soybean Weed Guide 2026, sd soybean: G (PDF) |
| Enlite EPA 352-757; same active ingredients on 1 other branded product | chlorimuron, flumioxazin, and thifensulfuron | 2, 14 | Sd Soybean Weed Guide 2026, sd soybean: G (PDF) |
| Surveil EPA 62719-689 | cloransulam-methyl and flumioxazin | 2, 14 | Sd Soybean Weed Guide 2026, sd soybean: 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.