Hobo spiders are probably responsible for most of the necrotic spider bites in Utah. Most people say did not even feel the bite when it happened. Hobo spiders live in solid & concrete cracks, window wells, near foundations, woods stacks, or under anything on the ground surface. The hobo spider is commonly confused with the brown recluse. In Utah, brown recluses only live around St. George.

Black widows live in cluttered areas, hollow stumps, under rocks, sheds, garages, basements, and under stairs. Black widow bites can cause instant pain, but most of the time it depends on where and amount of venom.

It is important to your landscape maintained. Cluttered areas are excellent places to form colonies. You should keep you foundation clear from debris, because spiders are attracted to heat from your home, and it makes it Exterior Pest Control more effective.