Spiders are an essential way to naturally keep pests at bay. Fine if you don't mind spiders, not so fine if you are terrified. Spider Ex is a humane way to control spiders and other insects without killing them. Use this spray around door frames, window sills and CCTV camera cases. When camping spray around areas where spiders are most likely to enter. Temperature changes are when spiders are more likely to come indoors and find a dark place to nest. The most common place for spiders are sheds and garages, spraying these areas on a regular basis will deter the spiders from nesting.