From labels and weed guides

Best herbicides for volunteer corn in soybeans

For volunteer corn in soybeans, the weed guides list 8 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for soybeans.

Volunteer Corn 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 3 weed guides, 8 active-ingredient groups are rated at least 80% control for volunteer corn in soybeans.

Example productActive ingredientsMOA groupRatings checked
78623 58% Technical Solution
EPA 524-532; same active ingredients on 83 other branded products
glyphosate9WinField Crop Protection 2026, soybean post: E → 91–100% control (PDF)
Arrow 2EC
EPA 66222-60; same active ingredients on 36 other branded products
clethodim1Ms Weed Guide 2025, ms soybean post: 7 → 80–90% control (FieldMarshal policy interval) (PDF); WinField Crop Protection 2026, soybean post: E → 91–100% control (PDF)
Actylis Glufosinate 280SL
EPA 2749-637; same active ingredients on 31 other branded products
glufosinate10Ms Weed Guide 2025, ms soybean post: 9 → 90–100% control (FieldMarshal policy interval) (PDF); WinField Crop Protection 2026, soybean post: G → 81–90% control (PDF)
Agent GT
EPA 33270-30; same active ingredients on 3 other branded products
fomesafen and glyphosate9, 14WinField Crop Protection 2026, soybean post: E → 91–100% control (PDF)
Assure II
EPA 352-541; same active ingredients on 3 other branded products
quizalofop-p-ethyl1Ky Weed Guide 2025, ky soybean postemergence: 9 → 80–90% control (FieldMarshal policy interval) (PDF); WinField Crop Protection 2026, soybean post: E → 91–100% control (PDF)
Enfilade DX
EPA 91234-308; same active ingredients on 3 other branded products
fluazifop-p-butyl1Ky Weed Guide 2025, ky soybean postemergence: 9 → 80–90% control (FieldMarshal policy interval) (PDF); Ms Weed Guide 2025, ms soybean post: 8 → 80–90% control (FieldMarshal policy interval) (PDF); WinField Crop Protection 2026, soybean post: E → 91–100% control (PDF)
Poast
EPA 7969-58; same active ingredients on 1 other branded product
sethoxydim1Ky Weed Guide 2025, ky soybean postemergence: 8 → 80–90% control (FieldMarshal policy interval) (PDF); Ms Weed Guide 2025, ms soybean post: 7 → 80–90% control (FieldMarshal policy interval) (PDF); WinField Crop Protection 2026, soybean post: E → 91–100% control (PDF)
Sequence
EPA 100-1185
glyphosate and metolachlor9, 15WinField Crop Protection 2026, soybean post: 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.