From labels and weed guides

Best herbicides for wild buckwheat in soybeans

For wild buckwheat in soybeans, the weed guides list 5 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for soybeans.

Wild Buckwheat control in soybeans

Every listed product is labeled for soybeans. 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 2 weed guides, 5 active-ingredient groups are rated at least 80% control for wild buckwheat in soybeans.

Example productActive ingredientsMOA groupRatings checked
Alligare Dicamba 4
EPA 81927-55; same active ingredients on 28 other branded products
dicamba4ND Weed Guide 2026: E → 90–99% control (PDF)
BLASTWAVE 240 EC
EPA 103087-15; same active ingredients on 12 other branded products
oxyfluorfen14ND Weed Guide 2026: G-E → 80–99% control (PDF)
Flu-Rimuron
EPA 85678-48; same active ingredients on 2 other branded products
chlorimuron and flumioxazin2, 14WinField Crop Protection 2026, soybean pp pre: G → 81–90% control (PDF)
Linex 4L
EPA 61842-21; same active ingredients on 2 other branded products
linuron5WinField Crop Protection 2026, soybean pp pre: G → 81–90% control (PDF)
Fierce XLT
EPA 59639-194
chlorimuron, flumioxazin, and pyroxasulfone2, 14, 15WinField Crop Protection 2026, soybean pp pre: E → 91–100% 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.