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Crop Protection & Pesticides

Cypermethrin: Uses, Safety and Label Guidance for Farmers

Cypermethrin is a synthetic pyrethroid insecticide that kills insects by contact and ingestion. It is used against chewing and sucking pests such as bollworms and caterpillars in many crops, but it is highly toxic to fish and bees, so it must be used carefully.

Last reviewed: 7 November 2026

Key points

  • Group: synthetic pyrethroid insecticide (contact and stomach action).
  • Sold in formulations such as 10% EC and 25% EC; the dose differs by formulation, crop and pest.
  • Use only for the crops and pests listed on the CIBRC-approved label.

Safety

  • Highly toxic to fish and aquatic life: do not spray near ponds or streams or wash equipment in them.
  • Toxic to bees: avoid spraying on flowering crops during the day when bees are active.
  • Wear gloves, mask and full clothing, and observe the pre-harvest interval on the label.

Avoid resistance

Repeated use of pyrethroids can make pests resistant. Rotate with insecticides from different mode-of-action groups and use them only when pest levels justify spraying, as advised by your KVK or agriculture officer.

Official source

Check the latest rules, benefits and forms here. KisanPe is an independent platform and is not a government website.

Directorate of Plant Protection, Quarantine & Storage (CIBRC registrations) ↗

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Common questions

What type of insecticide is cypermethrin?

A synthetic pyrethroid with contact and stomach action.

Is cypermethrin harmful to bees and fish?

Yes, it is highly toxic to both. Avoid spraying near water and on flowering crops when bees are active.

What dose should I use?

Follow the dose on the label for your formulation, crop and pest; it differs between 10% EC and 25% EC products.

General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.

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