From labels and weed guides
Group 4 herbicides for black nightshade in sorghum
There are 2 Group 4 active-ingredient groups rated good or excellent for black nightshade in sorghum, with products labeled for sorghum.
Group 4 mode of action (MOA) options
Group 4 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 sorghum. 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, 2 active-ingredient groups are rated good or excellent for black nightshade in sorghum.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Alligare Dicamba 4 EPA 81927-55; same active ingredients on 34 other branded products | dicamba | 4 | WinField Crop Protection 2026, sorghum: G (PDF) |
| Comet EPA 71368-87; same active ingredients on 8 other branded products | fluroxypyr 1-methylheptyl ester | 4 | WinField Crop Protection 2026, sorghum: 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.