Diatomaceous earth can kill spider mites by drying them out, but it only works on areas they touch, like soil—not the leaf undersides where they usually hide. To improve effectiveness, mix ...

Diatomaceous earth works as a natural pest control, soil amendment, deodorizer, and more. Helin Loik-Tomson / Getty Images Made of fossilized aquatic organisms, or diatoms, diatomaceous earth (DE) is ...

Diatomaceous earth dehydrates and kills spiders—it's a safe, affordable alternative to chemical sprays. Lightly dust entry points, basements, and attics; reapply weekly with safety gear. You can also ...