“Quick Kill Mosquito Bti Bits Broadcast these easy, ready to use bits to water gardens, flower pots, rain barrels, bird baths, tree holes, unused swimming pools, old automobile tires and wait for nature to take its course. Within 24 hours mosquito larvae are dead and you can get back outdoors and begin to enjoy your lawn, garden and farm! Application: Broadcast 1 tsp. per 25 sq. ft. or 1 Tbs. per 75 sq. ft. every 2 weeks during mosquito season. Bti is a bacteria that controls mosquito and black flies in their larval filter feeding stage of development. The larvae die after consuming the bacteria that causes a disease specific to them but are harmless to all other forms of wildlife. SHIPPING INCLUDED”