Chemicalsamvachornet

Hornet

AMVAC · 1. When annual rainfall and/or irrigation is less than 15 inches on soils with less than 2% · EPA Reg 5481-678 · Herbicide Document last checked 2026-05-30

About this product

Active ingredient 1. When annual rainfall and/or irrigation is less than 15 inches on soils with less than 2%
Manufacturer AMVAC
Category Herbicide

Full details for Hornet

EPA registration data Reg. 5481-678 — registry reference, signal word and status.

Applicator discussion

Nothing here is label direction — the label is the law. These are notes from other applicators, moderated before they appear. Check the labeling accompanying the product and applicable state requirements.

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According to the label From the product label

These details were extracted from this product's label PDF. The label is the law. Confirm every rate, site, restriction and safety requirement against the label before mixing or applying. Check for a state supplemental label; a product may be restricted or prohibited in a state or site even when a rate appears below. · EPA registration data for Reg. 5481-678 →

Hornet is a broadleaf herbicide designed for the control of broadleaf weeds in field corn. It contains two active ingredients: flumetsulam (18.5%) and clopyralid (60.0% potassium salt). This product is used as a preplant surface, preplant incorporated, preemergence, or postemergence treatment. It is effective against a variety of broadleaf weeds but requires careful timing and application to avoid crop injury, especially in certain soil types or weather conditions. For example, avoid application in soils with high organic matter or during extreme weather like heavy rain or high temperatures. When mixing, ensure compatibility with other products, as some combinations may cause crop injury or reduced effectiveness. Always follow specific instructions for tank mixing and use appropriate personal protective equipment (PPE) to prevent exposure.

Pests covered (1)
broadleaf weeds
Areas treatable (1)
field corn

Application instructions from the label 1

field corn

Can be applied as preplant surface, preplant incorporated, preemergence, or postemergence treatment.

Target pest
broadleaf weeds
Location
Outdoor

Mixing instructions 1

Label notes
Tank mixing is permitted with certain products, but users must check compatibility and follow specific instructions to avoid crop injury.

Worker safety

Re-entry interval (REI) 48
PPE required Long-sleeved shirt and long pants, waterproof gloves, shoes plus socks, and protective eyewear.

Timing & weather

Use restrictions 4