Silencer

CaroVail · Lambda-Cyhalothrin · EPA Reg 66222-104 · Insecticide ✓ Last verified 2026-05-30

Free practice questions on this product's label, use, and safety.

Key facts From the EPA

Registration, signal word, restricted-use status and approved use sites are sourced from the U.S. EPA pesticide registry. EPA Reg. No. 66222-104. View this product's label on the EPA ↗ (EPA copy accepted July 15, 2020)

Active ingredient Lambda-Cyhalothrin

Manufacturer CaroVail

EPA registration 66222-104

Category Insecticide

Target pests Armyworms, Caterpillars, Loopers

Safety & handling DANGER

According to the label From the product label

These application details were read from this product's label by our system to help you in the field. The label is the law — always confirm rates, sites and restrictions against the actual product label before mixing or applying. View the full label →

Silencer is a restricted-use insecticide containing the active ingredient Lambda-cyhalothrin (12.7%). It is designed for professional pest control to manage various pests, including cutworms in agricultural settings. This product can be applied via ground applications (boom, airblast, or groundboom), aerial applications (ULV or non-ULV), and through sprinkler irrigation systems. When used for cutworm control in row crops, it is applied at a rate of 10 gallons of finished spray per acre. For orchard and vine crops, the rate is 50 gallons of finished spray per acre. Users must follow strict safety protocols, including wearing long-sleeved shirts, long pants, chemical-resistant gloves (barrier laminate or Viton), shoes plus socks, and protective eyewear. This product is highly toxic to fish and aquatic organisms; do not apply directly to water or areas where surface water is present. It is also highly toxic to bees; avoid application when bees are actively visiting the treated area. Always ensure proper buffer zones are maintained to prevent drift into aquatic habitats or non-target areas.

Application rates & sites 2

Target pest	Indoor / Outdoor	Where on site	Rate	Dilution	Infestation level	Notes
cutworms	Outdoor	Row Crops	10 gallons of finished spray per acre			Apply by ground; for soil incorporated applications, use higher rates.
cutworms	Outdoor	Orchard and Vine Crops	50 gallons of finished spray per acre			Apply by ground.

Mixing & dilution 2

For	Where	Amount	Per	Finished strength	Notes
cutworms	Row Crops		10 gallons finished spray	12.7% Lambda-cyhalothrin	Fill spray tank at least one-third full of clean water or diluent, add product, then add remaining water/diluent.
cutworms	Orchard and Vine Crops		50 gallons finished spray	12.7% Lambda-cyhalothrin	Fill spray tank at least one-third full of clean water or diluent, add product, then add remaining water/diluent.

Re-entry interval (REI) 24

PPE required Long-sleeved shirt and long pants; Chemical-resistant gloves (barrier laminate or Viton $\ge$ 14 mils); Shoes plus socks; Protective eyewear.

Timing & weather

Do not apply if wind velocity exceeds 15 mph.
Do not apply during temperature inversions.
Avoid application when wind direction favors non-target areas.

Use restrictions 5

Restricted Use Pesticide: To be used only by certified applicators or persons under their direct supervision.
Do not apply directly to water or areas where surface water is present.
Do not apply when weather conditions favor drift from treated areas.
Do not apply when bees are visiting the treated area.
Do not use non-emulsifiable oils as diluents.

Documents

📄 Label 📋 SDS

Label SDS

⬇ Download PDF Download requires a signed-in customer account. Anyone can view & print above.

Versions 2026-05-27 · default 2026-05-27

Label text

No label text digitised for this product yet.

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.