Spectracide Bug Stop Home Barrier Kills on contact to provide indoor plus outdoor insects control.This non staining,no-odor spray gives up to 12 months of control for cockroaches on non-porous surfaces,and also kills ants,spiders,fleas,ticks,crickets,earwigs,silverfish,stink bugs and other listed insects.The water based,clear formula leaves no odor or oily residue.