Raid Ant & Roach Killer 26 is an insecticide bug spray with a formula that kills critters on contact. The spray will keep killing carpenter ants and roaches, and other insects with residual action for up to 6 weeks. Raid Ant & Roach Killer works on a variety of crawling insects like cockroaches, ants, silverfish, crickets, earwigs, household spiders, multicolored Asian lady beetles and stinkbugs. The insecticide can be applied to surfaces where ants, cockroaches and other bugs are found. Take back your home with this easy to use ant & roach spray.