Ortho™ Bug B Gon® Diatom is a natural, chemical-free aerosol spray that kills crawling insects—including ants, fleas, cockroaches, earwigs, silverfish, bedbugs, and crickets—by dehydrating them with food-grade diatomaceous earth. When crawling pests come into contact, the microscopic silica particles damage their exoskeleton, causing dehydration and death. Its handy extension tube allows for precise application in cracks, crevices, baseboards, and behind appliances. Suitable for both indoor and outdoor use.