Raid Ant & Roach Killer 26 has a formula that kills on contact and keeps killing with residual action for up to 6 weeks against roaches and carpenter ants. Take back your home with this easy to use indoor ant & roach insecticide. Apply this crawling bug killer to surfaces where ants, cockroaches and other bugs are found. Kills a wide variety of insects including cockroaches, waterbugs, palmetto bugs, ants, silverfish, carpet beetles, crickets, earwigs, household spiders, multi-colored Asian lady beetles, stinkbugs, scorpions, and black widow spiders.