Konk 499 Air Guard Crawling Insect Killer insecticide effectively targets pests where they hide and breed. This pressurized crack, crevice and spot insecticide spray has residual properties to prevent re-infestation. Use the spray along baseboards, underneath furniture and equipment, and anywhere else insects may occur. Also apply it around doors, window frames, foundations, and more. Konk insecticide works quickly to control spiders, cockroaches, ants, fleas, and other crawling insects. Ontario class 4 pesticide.