From labels and weed guides

Best herbicides for buttercup in field corn

For buttercup in field corn, the weed guides list 4 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for field corn.

Buttercup control in field corn

Every listed product is labeled for field corn. 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 1 weed guide, 4 active-ingredient groups are rated at least 80% control for buttercup in field corn.

Example productActive ingredientsMOA groupRatings checked
78623 58% Technical Solution
EPA 524-532; same active ingredients on 82 other branded products
glyphosate9Ms Weed Guide 2025, ms burndown: 9 → 90–100% control (FieldMarshal policy interval) (PDF)
2,4-D Amine 4
EPA 1381-103; same active ingredients on 77 other branded products
2,4-d4Ms Weed Guide 2025, ms burndown: 8 → 80–90% control (FieldMarshal policy interval) (PDF)
Alligare Dicamba 4
EPA 81927-55; same active ingredients on 35 other branded products
dicamba4Ms Weed Guide 2025, ms burndown: 8 → 80–90% control (FieldMarshal policy interval) (PDF)
Bonedry
EPA 82557-1; same active ingredients on 13 other branded products
paraquat22Ms Weed Guide 2025, ms burndown: 7 → 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: 2026-09-30.