Raid Ant & Roach Killer 26 is specially formulated to kill roaches and carpenter ants on contact and keep killing. With residual action for up to 6 weeks, this easy to use roach & ant spray helps you take back your home. Just apply to surfaces where ants, cockroaches and other bugs are found.In addition to cockroaches and carpenter ants, Raid Ant & Roach Killer is also effective at killing a wide variety of insects to include silverfish, crickets, earwigs, stinkbugs, scorpions, waterbugs, palmetto bugs, carpet beetles, household spiders, multicolored Asian lady beetles, and black widow spiders.