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Spiders and their environment

  • Black Widow/Northern Widow prefer dark, quiet locations such as crawl spaces, porches, garages, and sheds. They can also be found in stacked pots or baskets, firewood, rodent burrows, water meters, stacked boards, under bricks and stones, and around pine stumps. They prefer to live outdoors but may occasionally be brought inside or the young can sometimes be found on the ground floors.


  • Brown Recluse Spiders prefer older homes that have been unoccupied for months or even years. They also like uninhabited rooms, under and behind furniture, far corners of storerooms, unused closets, under stairs, etc. This spider is NOT native to MI but can be transported here.


  • Yellow House Spider is usually found outside but migrate indoors in late summer and early fall where they weave protective, white, cocoon-like webs and overwinter.


  • Orb-weaving Spiders are the builders of the large flat webs we see glistening with morning dew.


  • Cobweb Spiders make small, irregular webs usually found indoors in the upper inside of window frames.


  • Wolf Spiders are the hairy spiders we often see outdoors. Occasionally they come indoors but prefer to stay on the ground floors.

  • Jumping Spiders are active during the day and are commonly found inside and around windows.


  • Crab Spiders live outside on flowers.

Spiders are valuable for their role as predators and naturally control other pests.

Picture of a wolf spider

Control and Prevention

  • Close gaps around outside entry doors and ground floor windows.

  • Keep grass mowed low next to foundations.

  • Caulk around windows and door frames.

  • Remove vegetation and litter from foundations, doorways and window wells.

  • Replace exterior light bulbs with the yellow bug lights.

  • Consider turning off your exterior lighting at night, unless absolutely necessary.

  • Carefully inspect flowers brought in from the garden or commercial greenhouses.

  • Vacuum those hard to reach places behind and under furniture often. Remember spiders don't like to be disturbed, so the more you do it the more likely they are to move!

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