Mosquito Bits kill mosquito larvae before they can become flying, biting, disease-spreading adults. The active ingredient in Mosquito Bits is B.t.i (Bacillus thuringiensis subspecies israelensis), a bacterium that’s deadly to mosquito larvae but harmless to other living things. Mosquito Bits are designed to provide quick kills of large populations of mosquito larvae. Mosquito Bits can be used in virtually all standing water including ponds and water gardens, rain barrels, roof gutters, bird baths, unused swimming pools, old automobile tires, animal watering troughs and wherever water collects. Mosquito Bits are also effective in grassy or marshy areas and where the mosquito population is extremely dense and a quick kill is needed. Just sprinkle one teaspoon of Mosquito Bits per 25 square feet of water surface area or one tablespoon per 75 square feet. Mosquito Bits will kill mosquito larvae for seven to 14 days. Additional applications of Mosquito Bits should be made in seven- to 14-day intervals for continued mosquito control.
Mosquito Bits are made by Summit which also makes the popular Mosquito Dunks product. (Mosquito Bits and Mosquito Dunks both contain the same active ingredient-- B.t.i.).