Kills bugs fast on contact and keeps killing with residual action indoors even after you spray, for up to four weeks. The easy-to-use spray can be applied to surfaces where ants, roaches, Waterbugs, Palmetto bugs, Silverfish, Carpet Beetles, Crickets, Earwigs, Spiders, Lady Beetles, Stinkbugs, Scorpions, Black Widow Spiders may be infesting. It leaves no lingering chemical odor, with a pleasant scent.