This is a highly selective microbial insecticide effective against mosquitoes. The bits will give a quick kill within 24 hours. May be applied to areas used by humans, fish, pets, wildlife. Effective up to 14 days. Kills mosquito larva. Sprinkle 1 teaspoon per 25 square feet or 1 tablespoon per 75 square feet (1/2 lb. per 2178 square feet) over the surface.Size is 30 Ounce. Dimensions are 8 X 5.5 X 3.8 Bacillus Thuringiensis Subspecies Isrealensis Primary Powder Aedes Aegypti (Aa) International Toxic Units (Itu) Per Milligram Primary Powder. UPC Code = 018506001179