Bonide Diatomaceous Earth is used for insect control. It can be used both indoors and outdoors. Works with in 48-hours by contact and ingestion. A natural option for killing crawling insects. Kills asian lady beetles, boxelder bugs, mites, crickets and more. Insects cannot become immune to its action. Insects all succumb within 24-48 hours of contact. Apply as a dust or a slurry. All natural and earthworm safe.