In the garden, spiders are beneficial insects that trap and eat large numbers of insect pests. Certain types of spiders are deadly, however, and their presence in the home can endanger family members and pets. If you notice unwelcome spiders in your house, you can eliminate them with diatomaceous earth, a natural product made from diatom fossils. Diatomaceous earth shrivels the exoskeletons of spiders and other arachnids and insects. Since it harms beneficial insects such as ladybugs and honeybees it should not be used in the garden.
Purchase natural grade diatomaceous earth powder from a hardware store, drug store or home center. Be sure to select natural grade diatomaceous earth, not the kind used for swimming pool filters.
Shake the powder in a thin layer under appliances and in cracks and crevices.
Shake a thin line of the powder at entry points to prevent spiders and other arachnids and insects from entering the home.
Store the powder in a high cabinet out of reach of children and pets.
Tips & Warnings
- Diatomaceous earth is also effective against ants and cockroaches.
- Do not apply the powder to areas accessible to children or pets.
- Prolonged exposure to the powder can cause lung irritation.
- Photo Credit Jupiterimages/Photos.com/Getty Images
How to Use Diatomaceous Earth in Gardening
People who are looking for an organic, non-pesticide way to keep pests from their garden might get good results using diatomaceous earth....
How to Kill and Get Rid of Hobo Spiders in Your House
Hobo spiders are also known as aggressive house spiders and funnel spiders are brown or gray in color. When fully grown, they...
How to Use Diatomaceous Earth as a Dewormer
Diatomaceous earth makes an effective nontoxic way to keep worms away from your farm animals. Here's how to use it safely.