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Cypermethrin

General Information

• Beyond Pesticides Synthetic Pytrethroids Factsheet
• Cypermethrin product names
• Chemical Class: Synthetic pyrethroid insecticide
• Uses: agricultural use as a foliar application on food and feed crops including cotton, pecans, peanuts, broccoli, and sweet corn, livestock and horses. industrial, commercial, and residential sites; soil residual termiticide
• Alternatives: Agriculture, Residential
• Beyond Pesticides rating: Toxic

Health Effects

• EPA Acute Toxicity Class: I (highly toxic)
• Cancer: Possible (10)
• Endocrine Disruption: Yes (36)
• Reproductive Effects: Yes (13)
• Neurotoxicity: Yes (4)
• Kidney/ Liver Damage: Yes (4)
• Sensitizer/ Irritant: Yes (6)
• Birth/ Developmental Defects: Yes (6)

Environmental Effects

• Detected in Groundwater: Not documented
• Detected in Streams: Not documented
• Potential Leacher: Not documented
• Toxic to Birds: Not documented
• Toxic to Fish/ Aquatic Organisms: Yes (8)
• Toxic to Bees: Yes (8)
• Toxic to Mammals: Yes (8)
• Long-Range Transport: Not documented

Additional Information

• Regulatory Information:
  • EPA Reregistration Eligibility Decision (RED) signed (1/2008)
• Supporting information:
  • Daily News Blog entries (Beyond Pesticides)
  • Asthma, Children and Pesticides (Beyond Pesticides)
  • NCAP Cypermethrin Factsheet (Northwest Coalition for Alternatives to Pesticides)
  • Extoxnet Cypermethrin Factsheet (Extension Toxicology Network)
  • PAN Pesticides Database: Cypermethrin (Pesticide Action Network)
• Key Studies:
  • Common Pesticides Poison Homes (Beyond Pesticides)