Sinate

AMVAC · Topramezone 1.10% · EPA Reg 5481-637 · Herbicide Document last checked 2026-05-30

About this product

Active ingredient Topramezone 1.10%

Manufacturer AMVAC

Category Herbicide

Full details for Sinate

EPA registration data Reg. 5481-637 — 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. 5481-637 →

SINATE HERBICIDE is a postemergence herbicide used for the control of emerged grass and broadleaf weeds in LibertyLink (LL) field corn and LL sweet corn. It contains two active ingredients: Topramezone (1.10%), a systemic herbicide that inhibits carotenoid biosynthesis (Group 27), and Glufosinate-ammonium (26.95%), a contact herbicide that inhibits glutamine biosynthesis (Group 10). This product is designed specifically for use in LibertyLink corn varieties. It is absorbed by plant foliage and works to control a wide range of annual weeds, including various grasses and broadleaf species. When applying, technicians should note that the product is highly effective under warm temperatures and high humidity with bright sunlight, but efficacy may be reduced during heavy dew, mist, or rain. For handling, applicators must wear long-sleeved shirts, long pants, chemical-resistant gloves (barrier laminate, polyethylene, Viton ≥ 14 mils, rubber ≥ 14 mils, or polyvinyl chloride ≥ 14 mils), and shoes plus socks. It is critical to avoid drift to non-target plants, especially native corn, as the product can cause injury. Always follow Worker Protection Standard (WPS) requirements and observe the 12-hour restricted-entry interval (REI) for field corn scouting.

Pests covered (2)

emerged grass and broadleaf weedsBroadleaf Weeds, Vegetation

Areas treatable (1)

LibertyLink (LL) field corn and LL sweet corn

How to treat each type of area 1

LibertyLink (LL) field corn and LL sweet corn

Target pest	Location	Rate	Unit	Label notes
emerged grass and broadleaf weeds	Outdoor	21 to 28 fl oz per acre	fl oz per acre	Use in LibertyLink corn only. Do not apply to non-LibertyLink corn crops.

Mixing instructions 1

For pests	Amount	Per	Label notes
grass and broadleaf weeds	21-28	fl oz	May be tank-mixed with other herbicides for broader spectrum control; refer to specific tank mix instructions.

Worker safety

Re-entry interval (REI) 12

PPE required Long-sleeved shirt and long pants; chemical resistant gloves (barrier laminate, polyethylene, Viton ≥ 14 mils, rubber ≥ 14 mils or polyvinyl chloride ≥ 14 mils); shoes plus socks.

Timing & weather

Apply when temperatures are warm, humidity is high, and sunlight is bright. Avoid application during heavy dew, mist, or rain. Do not apply when wind speeds exceed 10 mph.

Use restrictions 1

Do not apply to non-LibertyLink corn crops. Do not apply within 30 feet of a native plant community. Do not apply to intertidal areas below the mean high water mark.