Diatomaceous Earth – One Pound
Diatomaceous earth is a naturally occurring, soft, siliceous sedimentary rock that is easily crumbled into a fine white to off-white powder. Diatomaceous earth consists of fossilized remains of diatoms, a type of hard-shelled algae. It is used as a mechanical insecticide. As it is heat-resistant, it can also be used as a thermal insulator.
Diatomite is used as an insecticide, due to its physico-sorptive properties. The fine powder absorbs lipids from the waxy outer layer of insects’, causing them to dehydrate.
It is also used as a growing medium in potted plants, particularly as bonsai soil. Bonsai enthusiasts use it as a soil additive, or pot a bonsai tree in 100% diatomaceous earth. This is because it retains water and nutrients, while draining fast and freely, allowing high oxygen circulation within the growing medium.