The Florida bark scorpion (Centruroides gracilis) is the most commonly encountered scorpion in Polk County and across central Florida. It is a medium-sized scorpion (~2.5–3.5″ long) with a slender brown body and yellowish-brown legs. Stings are painful but not life-threatening to healthy adults — medical attention is recommended for children, the elderly, and anyone with a history of allergic reactions.
Where Florida bark scorpions live in Polk County
- Under loose bark on palm trees, oaks, and citrus.
- In firewood piles, woodpiles, and lumber stacks.
- Beneath mulch and landscape stones.
- In outdoor furniture cushions, planters, and grill housings.
- In lanai screen tracks and pool deck expansion joints.
- Indoors: behind picture frames, under shoes, in laundry left on the floor, in damp basements (rare in Polk County) and crawlspaces.
Sting risk and what to do
Florida bark scorpion stings cause sharp pain at the sting site, localized swelling, and tingling that radiates from the sting site for hours. The venom is significantly less dangerous than the Arizona bark scorpion (C. sculpturatus) common in the desert Southwest. Florida bark scorpion stings are typically managed with cold compresses, oral pain relief, and observation. Seek medical care if: the victim is a child or elderly, has a history of allergic reactions to insect stings, develops difficulty breathing or swallowing, or has sting symptoms that spread beyond the local area.
Treatment and exclusion
- Exterior perimeter barrier spray (bifenthrin, lambda-cyhalothrin) at the foundation, fence lines, and around outdoor lighting.
- Harborage reduction: remove firewood piles to 20+ feet from the structure, clear loose bark from yard trees, reduce landscape mulch depth.
- Indoor void treatment: silica gel desiccant dust (Cimexa) into wall voids, behind outlet plates, around plumbing penetrations.
- Yellow or sodium-vapor outdoor lighting instead of white LED (reduces night-flying prey insects that attract scorpions).
- Shake out shoes and towels before use; don't leave laundry on the floor.
Related Lakeland Exterminators pages
- Spider Control in Lakeland — arthropod control
- Exterminator in Lakeland, FL — service overview
- Brown Widow Spider in Polk County — other arthropod species
Frequently asked questions
Are Florida bark scorpions deadly?
Not typically. Stings are painful but rarely cause serious medical complications in healthy adults. Seek medical attention for children, elderly, or anyone with allergy history.
How do I keep scorpions out of my house?
Exterior perimeter barrier + indoor void dust + harborage reduction (firewood, mulch, loose bark). Yellow outdoor lighting reduces prey attraction.
Do scorpions glow under UV light?
Yes. Florida bark scorpions fluoresce bright green under blacklight (365nm UV). UV flashlights are useful for inspection.
Are scorpions covered by my quarterly pest control program?
Standard Polk County quarterly programs include exterior perimeter spray that suppresses scorpions. Heavy scorpion pressure may require monthly cadence.
How do I find a Polk County scorpion control operator?
Call the number on this page. Operators routed through this line are FDACS Category 8B licensed.
Call (XXX) XXX-XXXX — routed to FDACS-licensed pest control operators serving Polk County, FL.