From labels and weed guides
Best herbicides for crabgrass in rice
For crabgrass in rice, the weed guides list 4 active-ingredient groups rated good or excellent, after checking that the products are labeled for rice.
Crabgrass control in rice
Every listed product is labeled for rice. 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, 4 active-ingredient groups are rated good or excellent for crabgrass in rice.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Acumen EPA 241-337-55467; same active ingredients on 18 other branded products | pendimethalin | 3 | Ms Weed Guide 2025, ms rice pre: G (PDF); WinField Crop Protection 2026, rice: G (PDF) |
| Caravel EPA 60063-58; same active ingredients on 10 other branded products | clomazone | 13 | Ms Weed Guide 2025, ms rice pre: E (PDF); WinField Crop Protection 2026, rice: E (PDF) |
| Arose EPA 83529-75; same active ingredients on 8 other branded products | quinclorac | 4 | Ms Weed Guide 2025, ms rice pre: E (PDF); Ms Weed Guide 2025, ms rice post before flood: G (PDF); WinField Crop Protection 2026, rice: E (PDF) |
| Prose EPA 83529-133; same active ingredients on 2 other branded products | fenoxaprop-p-ethyl | 1 | Ms Weed Guide 2025, ms rice post before flood: G (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.