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Callisto GT

Syngenta · Glyphosate · EPA Reg 100-1470 · Herbicide Document last checked 2026-05-30

About this product

Active ingredient Glyphosate
Manufacturer Syngenta
Category Herbicide

Full details for Callisto GT

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. 100-1470 — 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. 100-1470 →

Callisto GT is a postemergence herbicide designed for weed control in glyphosate-tolerant (GT) corn. It contains two active ingredients: glyphosate (34.0%) and mesotrione (3.4%). This product is effective against emerged grass and broadleaf weeds, providing 2-4 weeks of residual control for newly emerging broadleaf weeds. It should be applied to glyphosate-tolerant corn crops. When used as a tank-mix partner with a mesotrione-containing herbicide, it can be used to manage a broader spectrum of weeds. Users must follow specific application guidelines, such as using appropriate nozzle sizes to manage droplet size and prevent drift. It is critical to manage glyphosate resistance by following label directions and integrating other modes of action. Handling requires specific Personal Protective Equipment (PPE), including long-sleeved shirts, long pants, chemical-resistant gloves, and shoes plus socks. Always follow Worker Protection Standard (WPS) requirements for agricultural use.

Pests covered (2)
emerged grass and broadleaf weedsBroadleaf Weeds
Areas treatable (1)
glyphosate tolerant (GT) corn

Application instructions from the label 1

glyphosate tolerant (GT) corn

Provides 2-4 weeks of residual control of newly emerging broadleaf weeds.

Target pest
emerged grass and broadleaf weeds
Location
Outdoor

Mixing instructions 1

Label notes
Can be tank-mixed with mesotrione-containing herbicides or pyrethroid insecticides. Always perform a compatibility test before mixing with other products.

Worker safety

Re-entry interval (REI) 24
PPE required Long-sleeved shirt and long pants, chemical-resistant gloves, shoes plus socks.

Timing & weather

Use restrictions 1