The Arizona Bark Scorpion (Centruroides sculpturatus) is light tan to yellowish-brown and typically measures 2–3 inches. The Arizona bark scorpion is the most venomous scorpion in North America and the primary scorpion pest concern for homeowners throughout Pinal County, Chandler, Casa Grande, Tempe, Gilbert, and Mes.

Yes — the Arizona Bark Scorpion is considered a high-risk pest. Venom can cause severe pain, numbness, tingling, and in rare cases — especially in young children, elderly, or immunocompromised individuals — serious systemic reactions requiring emergency medical care.

In Arizona, arizona bark scorpions are most often encountered in the following situations: Sightings at night near walls, ceilings, or in shoes and clothing. Glowing bright green under UV blacklight. Sting symptoms including intense pain, numbness, and tingling.

The Arizona Bark Scorpion is most active during: Year-round, most active April–October. Arizona's warm desert climate can extend activity periods compared to other states, so year-round vigilance is recommended in the Phoenix metro and surrounding areas.

Seal gaps around doors, windows, and pipes. Install door sweeps. Remove rock landscaping and wood piles near the foundation. Trim trees and shrubs away from the house. Reduce insect populations that scorpions feed on.

Professional perimeter treatments with residual insecticides, crack and crevice applications, and UV blacklight inspections. Monthly service is recommended in high-activity areas.

Yes — like all scorpions, Arizona Bark Scorpions fluoresce bright green under UV (blacklight) illumination. Scanning your yard, garage, and home perimeter with a UV flashlight after dark is one of the most effective ways to locate and monitor scorpion activity. Pest Control Bros recommends this technique as part of any scorpion management program.