From labels and weed guides
Group 5 herbicides for fall panicum in soybeans
There are 3 Group 5 active-ingredient groups rated good or excellent for fall panicum in soybeans, with products labeled for soybeans.
Group 5 mode of action (MOA) options
Group 5 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 2 weed guides, 3 active-ingredient groups are rated good or excellent for fall panicum in soybeans.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Boundary 6.5EC EPA 100-1162; same active ingredients on 13 other branded products | metolachlor and metribuzin | 5, 15 | Ms Weed Guide 2025, ms soybean pre: G (PDF); WinField Crop Protection 2026, soybean pp pre: E (PDF) |
| Intimidator EPA 34704-1065 | fomesafen, metolachlor, and metribuzin | 5, 14, 15 | Ms Weed Guide 2025, ms soybean pre: G (PDF) |
| Tendovo EPA 100-1684 | cloransulam-methyl, metolachlor, and metribuzin | 2, 5, 15 | Ms Weed Guide 2025, ms soybean pre: E (PDF); WinField Crop Protection 2026, soybean pp pre: 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.