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Gateway on Pesticide Hazards and Safe Pest Management

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Bacillus Thuringiensis (Bt)

including israelensis, kurstaki, aizawai, tenebrionis strains

General Information

  • Fact Sheet: bacillus thuringiensis.pdf
  • Product Names:
  • Chemical Class: Microbial insecticide; Soil bacterium
  • Uses: Used to control Coleoptera, Lepidoptera or Diptera insects in field, greenhouse, water-grown crops, ornamentals, nursery, forest, food/nonfood storage, and standing waters.
    Approved uses in Organic Agriculture, Aquaculture, Least-toxic mosquito control.

Health and Environmental Effects

  • Cancer: No
  • Endocrine Disruption: Insufficiently Studied
  • Reproductive Effects: Insufficiently Studied
  • Neurotoxicity: Insufficiently Studied
  • Kidney/Liver Damage: Insufficiently Studied
  • Sensitizer/ Irritant: Possible (226)
  • Birth/Developmental: Insufficiently Studied
  • Detected in Groundwater: Not Likely
  • Potential Leacher: Insufficiently Studied
  • Toxic to Birds: Not Likely
  • Toxic to Fish/Aquatic Organisms: Possible: kurstaki and israelensis [moderate]; aizawai [high] (226)
  • Toxic to Bees: Yes: aizawai strain (7)

Residential Uses as Found in the ManageSafe™ Database

Additional Information