VectoBac G, GS, and GR are granular formulations of Bacillus thuringiensis subsp. israelensis (strain AM65-52) for control of mosquito larvae. The potency of all three formulations is 200 International Toxin Units (ITU) per milligram against Aedes aegypti larvae. The size, shape, and density of VectoBac granules lessen the potential for off-target application due to aerial drift and enable good penetration of dense vegetation.
VectoBac G (5/8 mesh) is the first Bti granule established for public health use in the early 1980s; contains both floating and sinking granules to ensure distribution of active ingredient throughout larval feeding zone.