Pesticide Boundary
EPA-registered pesticideIs Bacillus thuringiensis used as a pesticide, and where is the line for fertilizer claims?
Source: EPA pesticide registrations and the FIFRA 25(b) minimum-risk list
EPA-registered pesticide
Is Bacillus thuringiensis used as a pesticide? Yes, in EPA-registered products.
EPA APPRIL pesticide product records and the FIFRA 25(b) minimum-risk list · EPA records Oct 14, 2026 · 25(b) list checked Oct 29, 2026
What this means
Bacillus thuringiensis is an active ingredient in 150 active EPA pesticide registrations. EPA regulates a product containing it as a pesticide whenever the product claims to control, repel or kill pests.
- EPA registrations
- 150 active, 137 cancelled or inactive. See the products
What it means for US registration
A fertilizer or biostimulant product with Bacillus thuringiensis stays outside EPA's pesticide rules only while its label makes no pesticidal claims. Wording about suppressing disease, pests or pathogens would bring it under them, so the claim language carries the weight.
Registering a product with this input?
Source: EPA APPRIL pesticide product records and the FIFRA 25(b) minimum-risk list
See the full picture on Bacillus thuringiensis
This is one lens. Every connected source on Bacillus thuringiensis in one place: Biosafety Level, EPA Pesticide, Pesticide Boundary, Organic (NOP), Scientific Literature, Potential Claims, Taxonomy & Synonyms.