From labels and weed guides
Group 2 herbicides for common cocklebur in field corn
There are 10 Group 2 active-ingredient groups rated good or excellent for common cocklebur in field corn, with products labeled for field corn.
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 field corn. 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 4 weed guides, 10 active-ingredient groups are rated good or excellent for common cocklebur in field corn.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Definite EPA 83529-105; same active ingredients on 7 other branded products | acetochlor, clopyralid, and flumetsulam | 2, 4, 15 | ND Weed Guide 2026: E (PDF) |
| Herbivore EPA 2749-528-1381; same active ingredients on 5 other branded products | halosulfuron-methyl | 2 | ND Weed Guide 2026: E (PDF); WinField Crop Protection 2026, corn post: E (PDF) |
| Broadleaf Blend EPA 5481-678; same active ingredients on 4 other branded products | clopyralid and flumetsulam | 2, 4 | Ia Weed Guide 2025, ia corn post: E (PDF); Ia Weed Guide 2025, ia corn pre: G (PDF); ND Weed Guide 2026: E (PDF); WinField Crop Protection 2026, corn post: E (PDF) |
| Equip EPA 83100-57-83979; same active ingredients on 2 other branded products | mesotrione and rimsulfuron | 2, 27 | Ms Weed Guide 2025, ms corn post: E (PDF); ND Weed Guide 2026: E (PDF); WinField Crop Protection 2026, corn post: G (PDF) |
| Daikon EPA 91234-217; same active ingredients on 1 other branded product | dicamba and halosulfuron-methyl | 2, 4 | WinField Crop Protection 2026, corn post: E (PDF) |
| Peak EPA 100-763; same active ingredients on 1 other branded product | prosulfuron | 2 | WinField Crop Protection 2026, corn post: E (PDF) |
| Capreno EPA 264-1063 | tembotrione and thiencarbazone-methyl | 2, 27 | Ms Weed Guide 2025, ms corn post: G (PDF); WinField Crop Protection 2026, corn post: G/E (PDF) |
| Gambit EPA 81880-27-10163 | halosulfuron-methyl and prosulfuron | 2 | Ms Weed Guide 2025, ms corn post: G (PDF) |
| Prequel EPA 352-779 | isoxaflutole and rimsulfuron | 2, 27 | ND Weed Guide 2026: G-E (PDF) |
| REVULIN Q EPA 352-900 | mesotrione and nicosulfuron | 2, 27 | ND Weed Guide 2026: E (PDF); WinField Crop Protection 2026, corn 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
- Ia Weed Guide 2025 (PDF)
- Ms Weed Guide 2025 (PDF)
- ND Weed Guide 2026 (PDF)
- WinField Crop Protection 2026 (PDF)
Data from current labels and weed guides. Last source update: 2026-07-14.