Raid Ant and Roach Killer has a special insecticide formula that kills on contact and keeps killing roaches and carpenter ants with residual action for up to 6 weeks. Take back your space with this easy-to-use ant and roach spray, It can be applied to surfaces where ants, roaches and other listed bugs may be infesting. Kills a wide variety of insects including roaches, ants, silverfish, crickets, earwigs, household spiders, multicolored Asian lady beetles, stinkbugs, scorpions, and black widow spiders. This fragrance free insect killer leaves no lingering chemical odor.