From labels and weed guides
Best herbicides for common ragweed in sudangrass
For common ragweed in sudangrass, the weed guides list 4 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for sudangrass.
Common Ragweed control in sudangrass
Every listed product is labeled for sudangrass. 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 1 weed guide, 4 active-ingredient groups are rated at least 80% control for common ragweed in sudangrass.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Alligare Dicamba 4 EPA 81927-55; same active ingredients on 30 other branded products | dicamba | 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) |
| Comet EPA 71368-87; same active ingredients on 5 other branded products | fluroxypyr 1-methylheptyl ester | 4 | ND Weed Guide 2026: E → 90–99% control (PDF) |
| Savage EPA 34704-606; same active ingredients on 2 other branded products | 2,4-d | 4 | ND Weed Guide 2026: E → 90–99% 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.
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Sources
Data from current labels and weed guides. Last source update: 2026-09-30.