Ortho Home Defense Bed Bug, Flea & Tick Killer Powder kills bed bugs, fleas and ticks on contact. It can be used in cracks, crevices and all other areas where these pests crawl and hide, including: bed frames, box springs, inside empty dressers and clothes closets, and carpet edges. The powder is odorless and long lasting. One 12 oz. bottle of Ortho Home Defense Bed Bug, Flea & Tick Killer Powder covers 1,500 sq. ft.