Don't just kill bugs - create a bug barrier. Ortho Home Defense Insect Killer for Indoor & Perimeter kills listed bugs and keeps them out of your home. This insect control product kills common home-invading insects, including ants, cockroaches, spiders, fleas, ticks, scorpions, beetles, silverfish, centipedes, and millipedes (refer to product label for complete list). It also provides up to 12 months protection against ants, roaches, and spiders indoors on non-porous surfaces. Ortho Home Defense Insect Killer for Indoor & Perimeter2 is non-staining and odor-free, and dries in minutes. Use indoors in kitchens, bathrooms, and basements, as well as outdoors for decks and around home perimeters or perimeter of foundations. Apply anytime as a preventative treatment or after you see evidence of insect activity. This product is concentrate and must be diluted with water before use. Each 32 oz. container of Ortho Home Defense Insect Killer for Indoor & Perimeter Concentrate makes up to 4 gallons of bug killer which can be applied using a tank sprayer.