DiPel® is the leading biological insecticide worldwide for the control of lepidopteran larvae. DiPel is specially prepared dryflowable formulations containing live spores and endotoxin of naturally occurring bacterium (Bt), Bacillus thuringiensis subsp. Kurstaki in the case of DiPel and Bacillus thuringiensis subsp.

Bts (Bacillus thuringiensis) are naturally occurring bacterium commonly found in soil. Certain strains infect and kill insects. These strains have been developed for use as biological insecticides.