RESIDUAL INSECTICIDE SPRAY (COMMERCIAL) Contains 0.50% Permethrin Doktor Doom Residual Insecticide Spray is Odorless and dries clear. Shake can before spraying. Spray in the evening when there is little or no wind. Areas to spray: Window sills & door screens, light fixtures, eaves & roof over hangs, foundations, walls, shaded areas and hundreds of other applications. A light mist on interior and exterior window sills will kill insects when they come into contact with sills. This product is NOT meant to be sprayed on plants Read instructions on label! This product can only be shipped in Canada