From labels and weed guides
Best herbicides for russian thistle in wheat
For russian thistle in wheat, the weed guides list 34 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for wheat.
Russian Thistle control in wheat
Every listed product is labeled for wheat. 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 3 weed guides, 34 active-ingredient groups are rated at least 80% control for russian thistle in wheat, showing the top 12 below.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| 2,4-D Amine 4 EPA 1381-103; same active ingredients on 76 other branded products | 2,4-d | 4 | Ks Weed Guide 2026, ks wheat post cont: E → 90–100% control (FieldMarshal policy interval) (PDF); ND Weed Guide 2026: G → 80–90% control (PDF) |
| Affinity BroadSpec EPA 279-9601; same active ingredients on 26 other branded products | thifensulfuron and tribenuron-methyl | 2 | Ks Weed Guide 2026, ks wheat post: G-E2 → 80–100% control (FieldMarshal policy interval) (PDF); Ks Weed Guide 2026, ks wheat post cont: E2 → 90–100% control (FieldMarshal policy interval) (PDF); WinField Crop Protection 2026, small grains: G/E → 81–100% control (PDF) |
| Bonedry EPA 82557-1; same active ingredients on 12 other branded products | paraquat | 22 | ND Weed Guide 2026: E → 90–99% control (PDF) |
| Bison EPA 71368-28-1381; same active ingredients on 11 other branded products | bromoxynil and mcpa | 4, 6 | ND Weed Guide 2026: E → 90–99% control (PDF); WinField Crop Protection 2026, small grains: G/E → 81–100% control (PDF) |
| Ally XP EPA 279-9575; same active ingredients on 10 other branded products | metsulfuron-methyl | 2 | WinField Crop Protection 2026, small grains: G → 81–90% control (PDF) |
| Blanket EPA 81134-2-55467; same active ingredients on 8 other branded products | sulfentrazone | 14 | ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| DuPont GR1 EPA 352-884; same active ingredients on 6 other branded products | pyroxsulam | 2 | ND Weed Guide 2026: G → 80–90% control (PDF) |
| Broclean EPA 34704-891; same active ingredients on 5 other branded products | bromoxynil | 6 | Ks Weed Guide 2026, ks wheat post: G → 80–90% control (FieldMarshal policy interval) (PDF); ND Weed Guide 2026: E → 90–99% control (PDF) |
| Express EPA 279-9594; same active ingredients on 5 other branded products | tribenuron-methyl | 2 | Ks Weed Guide 2026, ks wheat post: G2 → 80–90% control (FieldMarshal policy interval) (PDF); ND Weed Guide 2026: Ea → 90–99% control (PDF) |
| Facet L EPA 7969-315; same active ingredients on 5 other branded products | quinclorac | 4 | WinField Crop Protection 2026, small grains: G → 81–90% control (PDF) |
| ACCURATE EXTRA EPA 279-3558; same active ingredients on 3 other branded products | metsulfuron-methyl, thifensulfuron, and tribenuron-methyl | 2 | Ks Weed Guide 2026, ks wheat post: G-E2 → 80–100% control (FieldMarshal policy interval) (PDF) |
| Cimarron Plus EPA 101563-183; same active ingredients on 3 other branded products | chlorsulfuron and metsulfuron-methyl | 2 | Ks Weed Guide 2026, ks wheat preemergence: G2 → 80–90% control (FieldMarshal policy interval) (PDF); Ks Weed Guide 2026, ks wheat post: G2 → 80–90% control (FieldMarshal policy interval) (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: 2026-10-01.