Diatomaceous Earth as Pesticide

[Keith]

I use any opportunity I get to preach Diatomaceous Earth as a pesticide.

It's completely natural, safe and HIGHLY effective as killer the majority of pests. Also cheap.

Compared to spraying chemicals I would bet on it killing longer and more effective as we have seen the amount of cockroaches, beetles and other similar pests reduced to nothing whereas with chemical sprays there would be the stray one here and there.

[havasu]

I use Boric acid. DE is good, but I can only find it in large quantities at pool supply houses.

[JoeAmerican]

I use DE extensively as a pesticide, but only food grade, as the pool stuff is potentially harmful. Check it @ Diatomaceous Earth - Food Grade Diatomaceous Earth Health Benefits

[Keith]

What's the difference between DE food grade and pool grade?