From labels and weed guides
Group 2 herbicides for common cocklebur in cotton
There are 2 Group 2 active-ingredient groups rated good or excellent for common cocklebur in cotton, with products labeled for cotton.
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 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, 2 active-ingredient groups are rated good or excellent for common cocklebur in cotton.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Herbivore EPA 2749-528-1381; same active ingredients on 5 other branded products | halosulfuron-methyl | 2 | ND Weed Guide 2026: E (PDF) |
| Pysonex EPA 352-613-85588; same active ingredients on 1 other branded product | pyrithiobac | 2 | Ms Weed Guide 2025, ms cotton pre: G (PDF); Ms Weed Guide 2025, ms cotton post: 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.