• 10.07.2018
  • Written by  melissa.garcia

Hot, dry summer has scorpions in South, Central Texas heading indoors

Striped bark scorpionSource: AgriLife Today

“There have been a lot of calls coming into the office recently from residents of

Striped bark scorpionSource: AgriLife Today

“There have been a lot of calls coming into the office recently from residents of San Antonio and from surrounding counties about scorpions,” said Molly Keck, Texas A&M AgriLife Extension Service entomologist, Bexar County.

Scorpions don’t seem to like either very cold or very hot temperatures, Keck said. And during hot, dry weather, they may seek out water and/or a more hospitable environment. Scorpions can typically be found under rocks, paving stones, logs or landscaping materials — or hiding in wood piles or inside the home.

Texas has 18 species of scorpions, but only the striped bark scorpion occurs throughout the state and is the most common species in Central Texas, she said.

“This scorpion is yellowish-tan with two dark stripes that run along the back,” she said. “Striped bark scorpions can get up to 2½ inches in length.”

“Usually it’s sufficient to apply ice packs on the area where the sting occurred to reduce pain and swelling,” she said. “But the severity of the sting is dependent upon the individual scorpion and the person’s reaction to the venom. A person stung by a scorpion should be watched closely for several hours following the incident to ensure an allergic reaction does not manifest. If breathing becomes difficult or hives occur, seek immediate medical attention.” When working outside, wear leather gloves to avoid being stung, Brown noted.

Keck and Brown noted the best defense against scorpions is exclusion and offered the following tips for keeping scorpions from getting into a home:

  • Keep debris and firewood away from the house.
  • Prune any trees or shrubs touching or hanging over the house.
  • Keep grass near or touching the house closely mowed.
  • Replace weather-stripping around doors and windows as necessary.
  • Fill weep holes in stone, brick or stucco homes with steel wool, copper mesh or screen wire.
  • Seal cracks, crevices and areas of pipe penetration in exterior walls with sealant.
  • Keep window screens in good repair and make sure they fit tightly into the window frame.
  • Treat the foundation of the home with a pesticide with ingredients such as permethrin, cypermethrin, deltamethrin, carbaryl, or propoxur.

If scorpions are found, the entomologists suggest applying pesticides around the foundation of the house and up to one foot above ground level on the exterior walls. They also suggest applying pesticides around doors, windows, eaves and other potential points of entry. Indoor treatments should be directed at potential points of entry as well as corners, cracks and crevices where scorpions can hide. Follow label directions for dosage, mixing and application methods.

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