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. 100-1131 →
Callisto Herbicide is a systemic preemergence and postemergence herbicide used for the control of annual broadleaf weeds. The active ingredient is Mesotrione (40.0%), which is formulated as a suspension concentrate (SC). It is primarily used in field corn, seed corn, yellow popcorn, sweet corn, and other listed crops. The product works through selective contact and residual control; weeds absorb the herbicide through the soil during emergence. For preemergence applications, it is recommended to ensure an activating rain (0.25 inches) occurs within 7-10 days after application. When used postemergence, it is absorbed through the leaves and/or emerging weeds. Users should be aware that Callisto is not effective for controlling most grass weeds. To manage herbicide resistance, users should follow integrated weed management practices, such as crop rotation and using different modes of action. Handling requires specific Personal Protective Equipment (PPE), including long-sleeved shirts, long pants, shoes plus socks, and chemical-resistant gloves. Applicators must follow Worker Protection Standard (WPS) requirements. Avoid application when rainfall is forecasted within 48 hours to prevent surface water contamination, and do not apply during temperature inversions.
Pests covered (2)
Annual Broadleaf WeedsBroadleaf Weeds
Areas treatable (1)
Field Corn, Seed Corn, Yellow Popcorn, Sweet Corn, and other listed crops
Application instructions from the label 1
Field Corn, Seed Corn, Yellow Popcorn, Sweet Corn, and other listed crops
Systemic preemergence and postemergence herbicide.
- Target pest
- Annual Broadleaf Weeds
- Location
- Outdoor
Worker safety
Re-entry interval (REI)
12
PPE required
Long-sleeved shirt and long pants, shoes plus socks, and chemical-resistant gloves.
Timing & weather
- Ensure activating rain (0.25 inches) within 7-10 days of preemergence application.
- Do not apply when wind speeds exceed 10 mph.
- Do not apply during temperature inversions.
- Avoid application when rainfall is forecasted within 48 hours.
Use restrictions 5
- Do not apply to white popcorn or ornamental (Indian) corn.
- Do not apply through irrigation systems unless specified.
- Do not apply with suspension fertilizers as the carrier.
- Avoid mixing with certain herbicides (e.g., Counter or Lorsban) postemergence to corn to prevent injury.
- Avoid mixing with organophosphate or carbamate insecticides within 7 days before or after application to corn.
Publication withheld. This catalog record has no active evidence summary, so its document and any extracted directions remain unavailable while identity and document role are reviewed.