|What is diatomaceous earth? Can this be purchased locally in most cases?
Answer from NGA
August 28, 2000
|Diatomaceous earth is ground up diatomite, a naturally occurring form of silica that was originally algae long, long ago. It is used on the soil surface according to the label instructions. The sharp bits cut into soft bodied pests such as slugs and cause them to dehydrate and die. Horticultural diatomaceous earth can usually be found locally at garden centers. Note that it is not the same type as the diatomaceous earth sold for swimming pool use.
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