EarthMD Diatomaceous Earth Shaker 275g (food Grade). A fine powder also know as silicon dioxide, consisting of aquatic microorganisms. As the insects crawl over the fine powder, their waxy outer protection is scratched, causing them to dehydrate and die. Diatomaceous Earth is non-toxic to humans and pets and will remain active as long as it is kept dry.
Expiry date: 2028-01-31 or better
