Ant and Roach Killer 26 kills on contact and keeps killing with residual action for up to 4 weeks. Outdoor Fresh scent leaves no lingering chemical odor. Formula kills these listed bugs fast on contact: ants, roaches, waterbugs, palmetto bugs, silverfish, carpet beetles, crickets, earwigs, spiders, lady beetles, stinkbugs, scorpions and black widow spiders. Easy-to-use spray ensures complete coverage of areas that bugs may be infesting. Read label before use and use only as directed.