Safer Brand Ant and Crawling Insect Killer is made from Diatomaceous Earth (D.E.) to provide effective pest control against a variety of crawling insects. This ready-to-use powder-like insect killer can be easily applied to those tight nooks and crannies where insects spend most of their time. The built-in pouring spout makes using this powder precise and consistent. Once insects come in contact or ingest D.E., it immediately goes to work to completely kill them within 48 hours. Our Ant and Crawling Insect Killer has been reviewed and listed by the Organic Materials Review Institute (OMRI) and is approved for organic use. It’s non-staining and has no odor, so you can confidently apply within your home. DE can also be used outdoors to eliminate pesky crawling insects in your garden. Just keep in mind that it will need to be reapplied after watering or rain.