Raid® Ant & Roach 26 bug spray kills ants and roaches on contact within 30 seconds. It keeps killing carpenter ants and roaches residual action for up to 6 weeks. This ant and roach killer can be applied to surfaces where ants, cockroaches and other bugs are found. Kills a wide variety of insects including Cockroaches, Ants, Silverfish, Earwigs, Household Spiders, Multi-Colored Asian Lady Beetles, and Stinkbugs.