Scorpions are primarily a concern in the southwestern U.S. — Arizona, California, Nevada, New Mexico, and Texas. The bark scorpion (Centruroides sculpturatus), common in Arizona, is the only species in North America with venom potent enough to be lifethreatening, particularly to children and the elderly. 

 

Scorpion behavior: Scorpions are nocturnal hunters that prey on insects and other arthropods. During the day, they hide under rocks, bark, woodpiles, and inside cool, dark areas of homes — shoes, clothing, bedding folds, and clutter. They enter homes through gaps at ground level. 

 

Prevention and exclusion: 

 

Seal all gaps around doors, windows, utility penetrations, and foundation cracks — scorpions can enter through openings as narrow as a credit card· 

 

Install door sweeps on all exterior doors· 

 

Eliminate harborage: remove rock piles, debris, wood piles, and landscape rocks from around the home· 

 

Keep mulch at least 12 inches away from the foundation· 

 

Shake out shoes, clothing, and towels before use — especially in high-risk areas Indoors: 

 

Remove clutter from floors and closets· 

 

Inspect bedding before sleeping in high-scorpion-activity areas· 

 

Use scorpion-proof bed posts (legs in glass jars) in severe infestation situations· 

 

Use a UV/blacklight flashlight at night to locate scorpions — scorpion cuticle fluoresces intensely under UV light, making them easily visible in the dark Control: Sticky glue boards placed along walls, in closets, and under furniture are effective monitoring and trapping tools. 

 

Residual insecticide sprays applied to cracks, crevices, and the exterior perimeter kill scorpions on contact and provide lasting barrier protection. Treat outdoor harborage areas and any cracks in the foundation directly.