From labels and weed guides
Best herbicides for horseweed in corn silage
For horseweed in corn silage, the weed guides list 19 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for corn silage.
Horseweed control in corn silage
Every listed product is labeled for corn silage. 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, 19 active-ingredient groups are rated at least 80% control for horseweed in corn silage, showing the top 12 below.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Comply EPA 100-1414-55467; same active ingredients on 13 other branded products | atrazine, mesotrione, and metolachlor | 5, 15, 27 | ND Weed Guide 2026: E → 90–99% control (PDF); ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| Definite EPA 83529-105; same active ingredients on 7 other branded products | acetochlor, clopyralid, and flumetsulam | 2, 4, 15 | ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| Actylis Atrazine 4L EPA 2749-657; same active ingredients on 4 other branded products | atrazine | 5 | ND Weed Guide 2026: E → 90–99% control (PDF) |
| Broadleaf Blend EPA 5481-678; same active ingredients on 4 other branded products | clopyralid and flumetsulam | 2, 4 | ND Weed Guide 2026: E → 90–99% control (PDF) |
| Orador EPA 91234-324; same active ingredients on 3 other branded products | acetochlor, clopyralid, and mesotrione | 4, 15, 27 | ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| Corsican EPA 7969-279-55467; same active ingredients on 2 other branded products | dimethenamid-p and saflufenacil | 14, 15 | ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| Distinct EPA 7969-150; same active ingredients on 2 other branded products | dicamba and diflufenzopyr | 4, 19 | ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| GCS Clopy 360SL EPA 94730-20; same active ingredients on 2 other branded products | clopyralid | 4 | ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| Balance Flexx EPA 264-1067; same active ingredients on 1 other branded product | isoxaflutole | 27 | ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| Acuron EPA 100-1466 | atrazine, bicyclopyrone, mesotrione, and metolachlor | 5, 15, 27 | ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| Acuron Flexi EPA 100-1568 | bicyclopyrone, mesotrione, and metolachlor | 15, 27 | ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| Commando EPA 42750-92 | 2,4-d and clopyralid | 4 | ND Weed Guide 2026: G → 80–90% 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.