Dual Magnum

CaroVail · EPA Reg 100-816 · Herbicide Document last checked 2026-05-30

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. 100-816 →

Dual Magnum Herbicide is a Group 15 herbicide containing 83.7% S-metolachlor. It is used for weed control in a wide variety of crops, including corn, cotton, grasses grown for seed, horseradish, legume vegetables, peanuts, potatoes, pumpkin, rhubarb, safflowers, sorghum, soybean, sugar beets, sugarcane, sunflowers, and tomatoes. The herbicide is absorbed by the shoots and roots of emerging weeds, which inhibits shoot and root tissue growth. It can be applied via band application, through irrigation systems (chemigation), or as a dry bulk granular fertilizer. Note that use in certain counties in New York (Nassau and Suffolk) is prohibited. Always follow specific crop-related instructions regarding timing (preplant, preemergence, or postemergence) and application methods to ensure efficacy and minimize environmental impact.

Pests covered (2)

weedsGrasses

Areas treatable (1)

corn, cotton, grasses grown for seed, horseradish, legume vegetables, peanuts, potatoes, pumpkin, rhubarb, safflowers, sorghum, soybean, sugar beets, sugarcane, sunflowers, tomatoes

Application instructions from the label 1

corn, cotton, grasses grown for seed, horseradish, legume vegetables, peanuts, potatoes, pumpkin, rhubarb, safflowers, sorghum, soybean, sugar beets, sugarcane, sunflowers, tomatoes

Can be applied as preplant, preplant incorporated, preemergence, or postemergence depending on crop.

Target pest: weeds
Location: Outdoor

Mixing instructions 1

Label notes
Can be used alone or in tank mixtures; check compatibility for specific crops.

Worker safety

Re-entry interval (REI) 24

PPE required All applicators and other handlers must wear: Long sleeved shirts and long pants; Chemical-resistant gloves made of barrier laminate or Viton ≥ 14 mils; Shoes plus socks.

Timing & weather

Avoid application during temperature inversions.
Monitor wind and droplet size to prevent drift.

Use restrictions 2

Sale, use, and distribution prohibited in Nassau and Suffolk Counties, State of New York.
Do not apply to areas where surface water is present or to intertidal areas below the mean high water mark.

Label SDS

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Document text and citations

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Reference only. Always read and follow the most current EPA-approved label on the product container. State and local restrictions may apply that are not reflected in this digitised copy. Verify the EPA registration number and revision date before use.