According to Wikipedia
“Diatomaceous earth consists of fossilized remains of diatoms, a type of hard-shelled algae. It is used as a filtration aid, mild abrasive in products including toothpast, mechanical insecticide, absorbent for liquids, matting agent for coatings, reinforcing filler in plastics, and rubber, anti-block in plastic films, porous support for chemical catalysts, cat litter, activator in blood clotting studies, a stabilizing component of dynamite, and a thermal insulator”
Wow! and that’s just the tip of the iceberg. It’s also used as pest management. Check out the video below and we’ve also transcribed it for you.
Dr. Jifunza gives a brief lesson on natural pest management to keep away the squash bugs and cabbage moths.
More info on uses for Diatomaceous Earth Here