What is diatomaceous
is composed of the fossilized shells of tiny marine
organisms called diatoms. The shells are
made mainly of silica (also found in sand and
glass). Ancient, land-locked and nearly pure
deposits of diatomaceous earth are mined for use in
manufacturing and agriculture.
Diatomaceous earth has
a variety of uses in filtration, adsorbants, a
component of dynamite (another name for diatomaceous
earth is diatomite), and as a natural
insecticide is very effective against a number of crawling insect pests
like cockroaches, ants, earwigs, silverfish,
sowbugs/pillbugs, and bedbugs but, it must
be kept dry to be effective (see below).