- 1). Find the areas where spiders seem to be congregating. They prefer dark, damp spots where other insects might get easily trapped in their web.
- 2). Clean the area of extraneous clutter. This will give you more space to put down the diatomaceous earth.
- 3). Sprinkle the area with diatomaceous earth. Sprinkle around the outside of your house also to keep more spiders and other insects from coming in.
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