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Allethrin
(includes all allethrin stereoisomers: d-trans allethrin, bioallethrin, S-bioallethrin, d-cis/trans allethrin)

General Information

• Pesticide product names
• Chemical Class: Pyrethroid
• Uses: wasps and hornets, roaches, ants, fleas, and mosquitos, approved for residential, horticultural non food plants, commercial animal premise (indoor) misting systems
• Alternatives: Insecticide
• Beyond Pesticides rating: Toxic

Health Effects

• EPA Acute Toxicity Category: II - III (moderately toxic to slightly toxic)
• Cancer: Not documented
• Endocrine Disruption: Yes (30)
• Reproductive Effects: Not documented
• Neurotoxicity: Yes (4) (8) (34)
• Kidney/ Liver Damage: Yes (4)
• Sensitizer/ Irritant: Yes (4)
• Birth/ Developmental Defects: Not documented

Environmental Effects

• Detected in Groundwater: Not documented
• Detected in Streams: Not documented
• Potential Leacher: No (27)
• Toxic to Birds: No (4)
• Toxic to Fish/ Aquatic Organisms: Yes (4)
• Toxic to Bees: Yes (4)
• Toxic to Mammals: Not documented
• Long-Range Transport: Not documented

Additional Information

• Regulatory Information:
  • EPA Reregistration Eligibility Decision (RED) signed (6/2007)
  • EPA Amended RED (05/2009)
• Supporting information:
  • Extoxnet Pesticide Factsheet (Extension Toxicology Network)
  • PAN Pesticides Database: (Pesticide Action Network)
• Studies:
  • Mosquito repellent (pyrethroid-based) induced dysfunction of blood–brain barrier permeability in developing brain. Sinha, C et al. 2004. International Journal of Developmental Neuroscience
  • Morphological changes in the respiratory system of mice after inhalation of mosquito-coil smoke. Cheng V, et al. 1992. Toxicology letters
  • The action of allethrin on the peripheral nervous system of the frog. Joep Van Den Bercken. 1976. Pest Management Science