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Callisto Xtra

Syngenta · 1Atrazine with a maximum of 1.4% · EPA Reg 100-1359 · Herbicide Document last checked 2026-05-30

About this product

Active ingredient 1Atrazine with a maximum of 1.4%
Manufacturer Syngenta
Category Herbicide

Full details for Callisto Xtra

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. 100-1359 — 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. 100-1359 →

Callisto Xtra is a selective preemergence and postemergence herbicide containing Atrazine (Group 5) and Mesotrione (Group 27). It is used to control broadleaf and certain grasses in field corn, seed corn, sweet corn, yellow popcorn, grain sorghum, and sugarcane.

Pests covered (1)
broadleaf and certain grasses
Areas treatable (1)
Field corn, Seed corn, Sweet corn, Yellow Popcorn, Grain Sorghum, and Sugarcane

Application instructions from the label 1

Field corn, Seed corn, Sweet corn, Yellow Popcorn, Grain Sorghum, and Sugarcane

Systemic; absorbed through the foliage of emerged weeds and by soil uptake.

Target pest
broadleaf and certain grasses
Location
Outdoor

Worker safety

Re-entry interval (REI) 12 hours
PPE required Mixers, loaders, applicators, flaggers, and other handlers must wear long-sleeved shirt and long pants, chemical-resistant gloves made of barrier laminate, nitrile rubber ≥14 mil, neoprene rubber ≥14 mil, or Viton® ≥14 mil, and shoes/boots.

Timing & weather

Use restrictions 5