Diatomaceous Earth 5#. 100% full strength DE for indoor/outdoor insect control In hones barns stables vegetable and flower gardens. Des mechanical mode of action works by contact and by ingestion. Insects cannot become immune to its action. Bedbugs Asian lady beetles box elder bugs mites ants flies fleas spiders other beetles and crawling insects all succumb within 24-48 hours of contact. Apply as a dust or a slurry. All Natural and earthworm safe.