Gateway test
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. - Beyond Pesticides rating:
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 (1)
- 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] (1)
- Toxic to Bees: Yes: aizawai strain (2)
Residential Uses as Found in the ManageSafe™ Database
Additional Information
- Regulatory Status:
- Supporting information:
- Beyond Pesticides' GE page
- Bt Factsheet (National Pesticide Information Center)
- Bt Fact Sheet (Northwest Coalition for Alternatives to Pesticides)
- PAN Pesticides Database: Bt (Pesticide Action Network)
- Studies [compiled from the Pesticide-Induced Diseases Database]
- Field-evolved resistance by western corn rootworm to multiple Bacillus thuringiensis toxins in transgenic maize [Gassmann, A., et al. PNAS. 111(14):5141-5146]
- Bt Corn and Insect Resistance: An Economic Assessment of Refuges. Hurley, T.M., Babcock, B.A. and Hellmich, R.L. (2001) Bt Corn and Insect Resistance: An Economic Assessment of Refuges, Journal of Agricultural and Resource Economics. Available at: https://www.jstor.org/stable/40987102.
- Resistance to Bt Maize by Western Corn Rootworm: Effects of Pest Biology, the Pest–Crop Interaction and the Agricultural Landscape on Resistance. Gassmann, A.J. (2021) Resistance to BT maize by western corn rootworm: Effects of pest biology, the Pest–crop interaction and the agricultural landscape on resistance, Insects. Available at: https://www.mdpi.com/2075-4450/12/2/136.
- A Th2-type immune response and low-grade systemic inflammatory reaction as potential immunotoxic effects in intensive agriculture farmers exposed to pesticides . Lozano-Paniagua, D. et al. (2024) ‘A th2-type immune response and low-grade systemic inflammatory reaction as potential immunotoxic effects in intensive agriculture farmers exposed to pesticides’, Science of The Total Environment, 938, p. 173545. doi:10.1016/j.scitotenv.2024.173545.
Gateway Health and Environmental Effects Citations
1. Perez, J.; Bond, C.; Buhl, K.; Stone, D. 2015. Bacillus thuringiensis (Bt) General Fact Sheet; National Pesticide Information Center, Oregon State University Extension Services. http://npic.orst.edu/factsheets/btgen.html.
2. Beyond Pesticides ChemWatch Factsheets. (Cited under factsheets on Beyond Pesticides Gateway; see top of individual chemical page)








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