From labels and weed guides
Best herbicides for russian thistle in oats
For russian thistle in oats, the weed guides list 13 active-ingredient groups rated good or excellent, after checking that the products are labeled for oats.
Russian Thistle control in oats
Every listed product is labeled for oats. 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 2 weed guides, 13 active-ingredient groups are rated good or excellent for russian thistle in oats, 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 74 other branded products | 2,4-d | 4 | ND Weed Guide 2026: G (PDF) |
| Affinity BroadSpec EPA 279-9601; same active ingredients on 21 other branded products | thifensulfuron and tribenuron-methyl | 2 | WinField Crop Protection 2026, small grains: G/E (PDF) |
| Bison EPA 71368-28-1381; same active ingredients on 11 other branded products | bromoxynil and mcpa | 4, 6 | ND Weed Guide 2026: E (PDF); WinField Crop Protection 2026, small grains: G/E (PDF) |
| Broclean EPA 34704-891; same active ingredients on 5 other branded products | bromoxynil | 6 | ND Weed Guide 2026: E (PDF) |
| Express EPA 279-9594; same active ingredients on 4 other branded products | tribenuron-methyl | 2 | ND Weed Guide 2026: Ea (PDF) |
| Harmony GT XP EPA 279-9577; same active ingredients on 4 other branded products | thifensulfuron | 2 | ND Weed Guide 2026: G-Ea (PDF) |
| Carnivore EPA 1381-249; same active ingredients on 2 other branded products | bromoxynil, fluroxypyr 1-methylheptyl ester, and mcpa | 4, 6 | WinField Crop Protection 2026, small grains: G/E (PDF) |
| Imitator + 2,4-D EPA 19713-635; same active ingredients on 2 other branded products | 2,4-d and glyphosate | 4, 9 | ND Weed Guide 2026: G (PDF) |
| GLEAN XP EPA 279-9600; same active ingredients on 1 other branded product | chlorsulfuron | 2 | WinField Crop Protection 2026, small grains: G (PDF) |
| Sharpen EPA 7969-278 | saflufenacil | 14 | ND Weed Guide 2026: E (PDF); WinField Crop Protection 2026, small grains: E (PDF) |
| Starane Flex EPA 62719-604 | florasulam and fluroxypyr 1-methylheptyl ester | 2, 4 | ND Weed Guide 2026: Ga (PDF) |
| Starane NXT EPA 62719-557 | bromoxynil and fluroxypyr 1-methylheptyl ester | 4, 6 | ND Weed Guide 2026: G-E (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.
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Sources
Data from current labels and weed guides. Last source update: 2026-07-14.