Raid Ant & Roach Killer 26 has a spray formula that kills roaches and carpenter ants on contact and keeps killing with residual action for up to 6 weeks. Take back your home with this easy to use ant & roach spray. It can be applied to surfaces where ants, cockroaches and other bugs are found.Our crawling insect killer's aerosol spray targets a wide variety of insects in your home including cockroaches, ants, silverfish, crickets, earwigs, household spiders, multi-colored Asian lady beetles, and stinkbugs.