Bacillus thuringiensis

Bacillus thuringiensis

Formerly known as Bt; subspecies kurstaki, aizawai, israelensis

Spore-forming bacterium with insect-active subspecies

Beneficial Bacteria

A spore-forming bacterial species used in registered biological insect-control products, with activity determined by subspecies and strain.

Bacillus thuringiensis produces spores and crystalline proteins. Commercial uses, target pests, potency measures, and application directions differ substantially among subspecies and registered strains.
Key Benefits
  • Strain-specific biological activity
  • Spore and crystal production
  • Registered crop-protection use
Formulation Availability

Wettable powder; Suspension concentrate; Foliar application

Compatibility Notes

Sensitive to ultraviolet light and high-pH tank mixtures. Product development and claims require strain-specific potency testing, registration, and label compliance.

Key Crops

Vegetables Vegetables
forestry forestry
specialty crops specialty crops

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