From labels and weed guides
Best herbicides for common ragweed in field corn
For common ragweed in field corn, the weed guides list 37 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for field corn.
Common Ragweed control in field corn
Every listed product is labeled for field corn. Ratings are shown when each weed guide that rates this weed has a lower interval bound of at least 80% control for the active-ingredient group. If a guide gives a range, its lower bound must be at least 80%.
Based on 6 weed guides, 37 active-ingredient groups are rated at least 80% control for common ragweed in field corn, showing the top 12 below.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| 78623 58% Technical Solution EPA 524-532; same active ingredients on 82 other branded products | glyphosate | 9 | Ks Weed Guide 2026, ks corn post: G → 80–90% control (FieldMarshal policy interval) (PDF); Mi Weed Guide 2026 Corn, mi corn post trait glyphosate: G → 80–90% control (FieldMarshal policy interval) (PDF); ND Weed Guide 2026: G-Ea → 80–99% control (PDF); ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| 2,4-D Amine 4 EPA 1381-103; same active ingredients on 77 other branded products | 2,4-d | 4 | Mi Weed Guide 2026 Corn, mi corn post: G → 80–90% control (FieldMarshal policy interval) (PDF); Mi Weed Guide 2026 Corn, mi corn post trait enlist: G → 80–90% control (FieldMarshal policy interval) (PDF); ND Weed Guide 2026: E → 90–99% control (PDF) |
| Alligare Dicamba 4 EPA 81927-55; same active ingredients on 35 other branded products | dicamba | 4 | Ks Weed Guide 2026, ks corn post: E → 90–100% control (FieldMarshal policy interval) (PDF); Ks Weed Guide 2026, ks corn post: G → 80–90% control (FieldMarshal policy interval) (PDF); Mi Weed Guide 2026 Corn, mi corn post: G → 80–90% control (FieldMarshal policy interval) (PDF); ND Weed Guide 2026: E → 90–99% control (PDF) |
| Actylis Glufosinate 280SL EPA 2749-637; same active ingredients on 31 other branded products | glufosinate | 10 | Mi Weed Guide 2026 Corn, mi corn post trait libertylink: E → 90–100% control (FieldMarshal policy interval) (PDF); ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| Bonedry EPA 82557-1; same active ingredients on 13 other branded products | paraquat | 22 | ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| Comply EPA 100-1414-55467; same active ingredients on 13 other branded products | atrazine, mesotrione, and metolachlor | 5, 15, 27 | Ky Weed Guide 2025, ky corn preemergence: 8 → 80–90% control (FieldMarshal policy interval) (PDF); ND Weed Guide 2026: E → 90–99% control (PDF); ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| BLASTWAVE 240 EC EPA 103087-15; same active ingredients on 12 other branded products | oxyfluorfen | 14 | ND Weed Guide 2026: G → 80–90% control (PDF) |
| Bite EPA 83529-74; same active ingredients on 8 other branded products | clopyralid | 4 | Mi Weed Guide 2026 Corn, mi corn post: E → 90–100% control (FieldMarshal policy interval) (PDF); ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| Comet EPA 71368-87; same active ingredients on 8 other branded products | fluroxypyr 1-methylheptyl ester | 4 | ND Weed Guide 2026: E → 90–99% control (PDF) |
| Broclean EPA 34704-891; same active ingredients on 5 other branded products | bromoxynil | 6 | ND Weed Guide 2026: E → 90–99% control (PDF) |
| COLT AS EPA 34704-1019; same active ingredients on 5 other branded products | clopyralid and fluroxypyr 1-methylheptyl ester | 4 | ND Weed Guide 2026: G-E → 80–99% control (PDF); WinField Crop Protection 2026, corn post: E → 91–100% control (PDF) |
| Herbivore EPA 2749-528-1381; same active ingredients on 5 other branded products | halosulfuron-methyl | 2 | Ky Weed Guide 2025, ky corn postemergence: 8 → 80–90% control (FieldMarshal policy interval) (PDF); Mi Weed Guide 2026 Corn, mi corn post: G → 80–90% control (FieldMarshal policy interval) (PDF); ND Weed Guide 2026: E → 90–99% control (PDF); ND Weed Guide 2026: G-E → 80–99% control (PDF); WinField Crop Protection 2026, corn post: G/E → 81–100% control (PDF) |
Rating bands: E 90-100%, G 80-89%, F 70-79%, P under 70%, N none. Policy intervals are marked in the source ratings. 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. Read the rating method.
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Sources
- Ia Weed Guide 2025 (PDF)
- Ks Weed Guide 2026 (PDF)
- Ky Weed Guide 2025 (PDF)
- Mi Weed Guide 2026 Corn (PDF)
- ND Weed Guide 2026 (PDF)
- WinField Crop Protection 2026 (PDF)
Data from current labels and weed guides. Last source update: 2026-09-30.