The same chlorine bleach that whitens your laundry and sanitizes garden tools is considered a pesticide by the U.S. Environmental Protection Agency. Clorox brand, and other bleaches with at least 5.25 percent sodium hypochlorite as their active ingredients and labeled for killing bacteria and fungi, are technically pesticides. While it should never be sprayed on or at adult mosquitoes, bleach is often recommended to kill mosquito larvae.

Standing Water

Mosquitoes breed in standing water. Anything from a birdbath to a children's wading pool to an old tire can hold mosquito larvae if it holds water for more than three days. Draining standing water regularly and storing outdoor items that hold water upside down is the best course of action. Where you do have regular standing water, only a small amount of bleach is needed -- 1 tablespoon for 50 gallons of water. Spray items that occasionally fill with water with a 1-to-1 solution of bleach and water once a week.

Warnings and Considerations