The proven efficacy of Summit B.t.i. Briquets—trusted for more than 35 years—is now available as a granule that you can apply by air or ground. Summit B.t.i. Granules are a flexible, formidable answer in mosquito control, spread over the surface of standing water where mosquito larvae live to kill them within 24 hours—and control them for up to 14 days. The active ingredient, B.t.i. (bacillus thuringiensis subspecies Israelensis), is a naturally occurring bacterium that’s deadly to mosquito larvae, yet harmless to other living things. Control mosquitos fast—in their larval stage—with Summit B.t.i. Granules. And for even more residual, long-term control, use Summit B.t.i. Briquets after applying B.t.i. Granules.