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Yellow Sac Spider

Yellow Sac Spider
Class: Arachnid
Other Names: black-footed spiders, long-legged sac spiders, yellow house spiders
Color: Pale tan or straw colored to pale greenish or light pale brown
Size: 1/4"
Legs: 4 pair, front legs longer than the rest
Diet: Small insects and other spiders
Hazard: May cause painful bites
Interesting Fact: Mazda had to recall vehicles twice because of problems with yellow sac spiders getting into fuel tanks—their webs block airflow to the tanks, increasing the risk of fire.
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Where Can You Find Yellow Sac Spiders?

You’re more likely to get bitten by yellow sac spiders at night because that’s when they are out hunting. They actively seek out their prey, rather than waiting for it to come to their webs. During the daytime hours, they hide in a silken tube or sac in the corners of your rooms where the ceiling and the walls join. The female also hides her eggs in a sac when she lays them in June or July.

In nature, these small, tan-colored spiders live in rock piles, logs, woodpiles, and under fallen leaves close to the ground. Yellow sac spiders overwinter as adults and readily invade homes in the fall as food starts to disappear.

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Are Yellow Sac Spiders Dangerous?

Many people blame the brown recluse when they’re bitten by a spider in their homes, but the yellow sac spider is actually the most common cause of such bites in the U.S. They may get trapped in clothing or bedding and bite in defense when they come in contact with your skin.

Yellow sac spiders can cause a nasty bite, which can be very painful and last for up to 10 hours and take up to 10 days to heal.

Their venom is not very toxic, but it may cause painful allergic reactions in some people, including swelling and blisters.

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As a Home Protection Plan customer, if you’re not satisfied with our pest control service, we will service your home at no additional cost until your issue is solved or receive your money back from your last scheduled service.

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How to Prevent Yellow Sac Spider Infestations

It can be hard to keep yellow sac spiders out of your home, but there are a few precautionary steps you can take.

To best prevent them from entering your home:

  • Check your screens and windows to make sure they seal tightly around the edges.
  • Close up any cracks and crevices around the exterior of your home.
  • Regularly clean in such areas as under the bed, behind picture frames, and other hidden places.
  • Keep woodpiles and debris away from the foundation of your home.
  • Make sure that vegetation and tree branches don’t come in contact with your home.

Schedule Yellow Sac Spiders Removal in Baltimore, MD

Even if you take precautions, yellow sac spiders may sneak inside your home, putting your family at risk for painful bites. A comprehensive treatment from the Brody Brothers, that includes the application of insecticide and spider-proofing of your home, will keep these spiders out of your living areas.

Contact us online today or give us a call at 410-653-2121 to schedule your yellow sac spider removal service today!