Build A Soil Diatomaceous Earth- one pound 23299

Diatomaceous Earth is an odorless and Non Toxic white powder. It is composed of finely milled fossilized shells of organisms called diatoms. The powder has an abrasive quality similar to pumice with very high porosity. The porosity allows it to absorb moisture easily. Because of the pumice-like quality of fossil shell flour, it is widely used to deter crawling insect pests.