Scorpions in San Marcos, TX
The striped bark scorpion (Centruroides vittatus) is the most common scorpion species encountered in San Marcos, TX, and its presence in homes is a concern that many local residents, from downtown San Marcos to the surrounding Hays County neighborhoods, deal with regularly.
Scorpions are arachnids (related to spiders) and are predators that feed on insects, other spiders, and even other scorpions.
Their presence indoors is generally a sign that they followed prey inside or found harborage conditions they liked.

Understanding how scorpions behave and how to exclude them from your home can help you avoid the painful, and occasionally dangerous, sting of an uninvited visitor.
About the Striped Bark Scorpion
The striped bark scorpion is 2.5 to 3 inches long, tan to light brown, with two broad, dark stripes running lengthwise down its back and a dark triangular marking at the top of its head.
It’s nocturnal, hiding during the day under rocks, logs, bark, and debris, and inside homes, in closets, under furniture, in shoes, and in wall voids.
Its sting is painful and causes local swelling and burning.
In rare cases, particularly with small children or individuals with venom allergies, more significant reactions can occur.
If stung, clean the wound, apply ice, take an OTC pain reliever, and seek medical attention if symptoms extend beyond the immediate sting site.
Why Scorpions Enter Homes
Scorpions enter homes for the same reasons most pests do: shelter, moisture, and food.
They’re attracted to cool, moist, dark spaces, especially during the heat of summer. And they follow their prey (crickets, cockroaches, and other insects) inside the home.
Newly built homes on previously undisturbed land can displace scorpion populations from their natural habitat, leading to elevated pressure in newer neighborhoods.
Homes with rocky landscaping, woodpiles near the foundation, and abundant insect activity are more likely to have scorpion encounters.
Always make sure you remove large piles of leaves, woodchips or other debris away from your foundation.
How to Scorpion-Proof Your Home
Exclusion is the most effective long-term strategy for keeping scorpions out of your home.
Key measures include:
Sealing gaps around all pipes, utility penetrations, and conduit where they enter the home
Installing door sweeps on all exterior doors, even a small gap is enough for a scorpion to squeeze through
Sealing cracks in the foundation and around window frames
Keeping woodpiles, rock piles, and debris away from the home’s foundation
Removing leaf litter and other debris from around the home
Trimming back vegetation that touches the home’s exterior walls.

Reducing Prey Populations
Because scorpions follow their prey, reducing insect populations around and inside your home directly reduces scorpion pressure.
A comprehensive general pest control program that targets crickets, cockroaches, and other insects that scorpions feed on is one of the most effective ways to make your home less attractive to scorpions.
Keeping exterior lights off or switching to yellow/sodium vapor lights (which attract fewer insects) can also reduce the prey base that draws scorpions near your home.
Finding Scorpions with a Black Light
One useful technique for spotting scorpions at night is to use a UV black light flashlight, scorpions fluoresce brilliantly under UV light, making them easy to spot in low-light conditions.
Walking your yard perimeter and checking the exterior of your home with a black light at night can help you gauge the scorpion pressure around your property and identify entry points.
Professional Scorpion Control
Professional scorpion control involves targeted treatment of the areas scorpions use as harborage and entry points, around the foundation, in the garage, around doors and windows, and in any other likely access areas.
Professional products provide longer residual activity than consumer products and are applied in the precise locations where scorpions travel and hide.
Paladin Pest Control treats for scorpions as part of our general pest control program, providing our San Marcos area customers with effective coverage against these painful pests.
Contact us to learn more about our scorpion control approach.
