How to Kill & Repel Spiders

Spiders are a common site just about anywhere a person lives in the United States. Reasons for killing spiders vary from people being scared of them to some being dangerous. Since spiders are so common indoors and outdoors, it can be tough to completely eliminate them. Taking certain steps, including changing the environment surrounding a home, is the best way to permanently repel spiders.

Things You'll Need

  • Vacuum
  • Broom
  • Insecticide spray or powder
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Instructions

    • 1

      Locate the areas where spiders are commonly found. Good places to look include cool and damp places such as basements. Spiders also prefer undisturbed locations such as crawl spaces and garages. Also check outdoor areas around the home. Look for common signs of spiders such as spider webs and nests.

    • 2

      Kill the spiders currently in the home or near home. Use a vacuum cleaner or broom to squash or suck up any spiders you see. Spray insecticides into any hard-to-reach or inaccessible spots where spiders could be hiding. Use an insecticide designed specifically for spiders or one that has any of the following chemicals: carbaryl, bendiocarb, chlorpyrifos or any of the synthetic pyrethroids. Insecticides, which can be bought online or at most hardware stores, will need to be reapplied periodically to prevent spiders from coming back.

    • 3

      Use insecticides as a barrier treatment to keep new spiders from entering your home. Vents, foundation cracks, garages, door and window thresholds, and any other possible outdoor entrance point need to be sprayed.

    • 4

      Remove spider webs and egg sacs from the home and surrounding areas. Routinely check the inside and outside of your home for spiders and their webs. Using a vacuum or a broom is the best way to remove spiders and their creations. Not allowing spiders an opportunity to nest, produce webs and lay egg sacs will help prevent them from coming back.

    • 5

      Clean up areas where spiders are commonly found. Spiders will keep coming back if areas they like to nest and hunt in are not cleaned out. Reduce clutter in garages, basements and other areas in your home where spiders are common. Remove firewood piles, weeds, shrubs and debris that are next to the home since these types of things attract spiders closer to dwellings. Correctly seal windows, doors and other entrance points to prevent spiders from entering the home.