The new wax moth control product, B402 (also known as Certan), uses Bacillus thuringiensis (Bt), a bacterium commonly found in nature that selectively kills wax moths at the larval stage. The moths, which can destroy honey bee wax combs and even the structure of hives, cause widespread damage and even colony losses for beekeepers. B402 offers efficacy of up to 100% against wax moth larvae. Additional Details ------------------------------ Product description: The new wax moth control product, B402 (also known as Certan), uses Bacillus thuringiensis (Bt), a bacterium commonly found in nature that selectively kills wax moths at the larval stage. The moths, which can destroy honey bee wax combs and even the structure of hives, cause widespread damage and even colony losses for beekeepers. B402 offers efficacy of up to 100% against wax moth larvae.