Field trial of two Bacillus thuringiensis var. israelensis formulations for control of Aedes species mosquitoes in Michigan woodlands.

Vectobac and Bactimos corn cob granules were evaluated for control of Aedes species mosquito larvae in woodland pools. No significant differences were seen between the 2 formulations. Both provided greater than 90% control at application rates as low as 100 mg/m2 (0.89 lb/acre) and greater than 98% control at label-specified field application rates (2.5 or 5 lb/acre).