Raid Ant & Roach Killer has a special insecticide formula that kills crawling insects on contact and keeps killing roaches and ants with residual action for up to six weeks. Protect your family with this easy to use ant & roach spray. Apply this multi purpose roach spray and ant spray to surfaces where cockroaches and other household bugs are found. Kills a wide variety of insects besides ants and roaches including silverfish, crickets, earwigs, household spiders, multicolored Asian lady beetles and stinkbugs.