From labels and weed guides
Best herbicides for lambsquarters in oats
For lambsquarters in oats, the weed guides list 14 active-ingredient groups rated good or excellent, after checking that the products are labeled for oats.
Lambsquarters 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 1 weed guide, 14 active-ingredient groups are rated good or excellent for lambsquarters 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: E (PDF) |
| Alligare Dicamba 4 EPA 81927-55; same active ingredients on 34 other branded products | dicamba | 4 | ND Weed Guide 2026: E (PDF); ND Weed Guide 2026: G (PDF) |
| ARGOS EPA 74530-71; same active ingredients on 20 other branded products | mesotrione | 27 | ND Weed Guide 2026: E (PDF) |
| Base Camp MCP Ester EPA 2935-554; same active ingredients on 15 other branded products | mcpa | 4 | ND Weed Guide 2026: 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) |
| Broclean EPA 34704-891; same active ingredients on 5 other branded products | bromoxynil | 6 | ND Weed Guide 2026: G (PDF) |
| Harmony GT XP EPA 279-9577; same active ingredients on 4 other branded products | thifensulfuron | 2 | ND Weed Guide 2026: 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: E (PDF) |
| Curtail M EPA 62719-86 | clopyralid and mcpa | 4 | ND Weed Guide 2026: G (PDF) |
| Orion EPA 100-1307 | florasulam and mcpa | 2, 4 | ND Weed Guide 2026: E (PDF) |
| Reviton EPA 71512-37-74530 | tiafenacil | 14 | ND Weed Guide 2026: G-E (PDF) |
| Sharpen EPA 7969-278 | saflufenacil | 14 | ND Weed Guide 2026: 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.