From labels and weed guides
Best herbicides for common ragweed in alfalfa
For common ragweed in alfalfa, the weed guides list 8 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for alfalfa.
Common Ragweed control in alfalfa
Every listed product is labeled for alfalfa. 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 2 weed guides, 8 active-ingredient groups are rated at least 80% control for common ragweed in alfalfa.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| ABUNDIT Edge EPA 352-922; same active ingredients on 81 other branded products | glyphosate | 9 | Ks Weed Guide 2026, ks alfalfa post: 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) |
| Bonedry EPA 82557-1; same active ingredients on 13 other branded products | paraquat | 22 | ND Weed Guide 2026: G-E → 80–99% 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) |
| MCP Amine 4 EPA 34704-130; same active ingredients on 2 other branded products | mcpa | 4 | ND Weed Guide 2026: G → 80–90% control (PDF) |
| Profine 75 EPA 2749-528; same active ingredients on 2 other branded products | halosulfuron-methyl | 2 | ND Weed Guide 2026: E → 90–99% control (PDF); ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| PAVILION MTZ EPA 89167-88-89391; same active ingredients on 1 other branded product | metribuzin and pendimethalin | 3, 5 | Ks Weed Guide 2026, ks alfalfa dormant: G-E → 80–100% control (FieldMarshal policy interval) (PDF) |
| Velpar AlfaMax EPA 61842-45; same active ingredients on 1 other branded product | diuron and hexazinone | 5 | Ks Weed Guide 2026, ks alfalfa dormant: E → 90–100% control (FieldMarshal policy interval) (PDF) |
| Sharpen EPA 7969-278 | saflufenacil | 14 | ND Weed Guide 2026: G-E → 80–99% 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.
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: 2026-09-30.