http://www.morethanalive.com/Diatomaceous-Earth-Food-Grade-Powder?gclid=CK_Rg7LUtKkCFcO8Kgods3ptPA
Using Diatomaceous Earth As Organic pest control ONLY FOOD GRADE> Pool grade will harm you
Household Pests:
DE is a natural, organic insect killer. DE kills by physical action and not by chemical...