Chemicalssyngentaaatrex-4l

AAtrex 4L

Syngenta · EPA Reg 100-497 · Herbicide Document last checked 2026-05-30

About this product

Active ingredient Pending extraction
Manufacturer Syngenta
Category Herbicide

Full details for AAtrex 4L

Source product label ↗ Open the catalog source label while the local copy is reviewed. Verify the product name, EPA registration number, and revision before use. Source safety data sheet ↗ Open the catalog source SDS while the local copy is reviewed. Verify the exact product and revision before relying on it. EPA registration data Reg. 100-497 — 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. 100-497 →

AAtrex 4L is a restricted-use herbicide manufactured by Syngenta, designed for season-long weed control in corn, sorghum, and certain other crops. The active ingredient is Atrazine at a concentration of 42.6%. It is effective against many broadleaf and grass weeds. This product is subject to ground and surface water concerns and is restricted for use only by certified applicators or those under their direct supervision. It is specifically prohibited for sale, use, or distribution in Nassau and Suffolk Counties in the State of New York. When applying, users must follow specific engineering controls, such as using closed systems for high-rate applications, and must adhere to Worker Protection Standards (WPS). Handling requires specific Personal Protective Equipment (PPE), including long-sleeved shirts, long pants, waterproof gloves (made of barrier laminate, nitrile, neoprene, or Viton), protective eyewear, and chemical-resistant footwear. Users should avoid application near wells, streams, or rivers to prevent groundwater contamination. Always check local regulations regarding well setbacks and land types like tile-outleted terraced fields before use.

Pests covered (1)
broadleaf and grass weeds
Areas treatable (1)
corn, sorghum, and certain other crops

Application instructions from the label 1

corn, sorghum, and certain other crops

season-long

Do not apply to sorghum crop if using certain application methods; check label for specific crop restrictions.

Target pest
broadleaf and grass weeds
Location
Outdoor

Mixing instructions 1

Label notes
When tank mixing or sequentially applying atrazine to corn or sorghum, do not exceed an application rate of 2.0 lbs ai/acre of atrazine per any single application, and the total pounds of atrazine applied must not exceed 3.5 pounds active ingredient per acre per year.

Worker safety

Re-entry interval (REI) 12
PPE required Coveralls (long-sleeved shirt and long pants), waterproof gloves (barrier laminate, nitrile, neoprene, or Viton), protective eyewear, and chemical-resistant footwear (plus socks).

Use restrictions 6