Creepy crawly spiders invading your home? TERRO Spider Killer Spray is proven to give you the protection you need against spiders including black widow brown recluse and hobo spiders. The spray also offers protection against ants cockroaches crickets scorpions bed bugs and more. The spray acts fast killing insects on contact. It delivers a long-lasting repellency for up to 6 weeks. TERRO Spider Killer Spray can be applied both indoors and outdoors in places including cracks and crevices near entry points crawl spaces behind appliances and other similar areas.