Hi Rowdy,
Came across the following article when researching Diatomite recently. The article refered to it as "Diatomaceous earth" which I am only assuming is the same thing (anyone feel free to correct me on this). Anyway article exerpt regarding uses of the crushed powder as follows:
Diatomaceous Earth may be used as a barrier to control adult flea beetles, sawfly, coddling moth, twig borer, thrips, mites, cockroach, slugs, snails and many other insects such as:
Aphids, thrips, earwigs, silverfish, and ants. Can be used for bedbugs, cabbage root flies, carrot root flies, fleas, pillbugs, ticks and is helpful in dealing with fungus gnats. Indoor and Outdoor Application: Sprinkle a light layer of DE in areas where pests frequent, including under stoves, cabinets, sinks, garbage cans, window and door frames and sills,
entrance ways, sewer pipes and drains, and in cracks and crevices. Repeat treatment as needed.
Carpet Beetles: Thoroughly dust along baseboards, carpet edges, under furniture, carpet, and rugs, and in closets and shelving.
Bedbugs: Take apart bed and dust joints and channels. Dust any hollow tubing and the interior framework as well as the mattress and all cracks in the room.
Fleas: Thoroughly dust carpets and pet's bedding and sleeping areas, as well as cracks and baseboards. It also can be rubbed into your pet's fur.
Flies: Thoroughly dust areas where flies frequent (walls, straw bedding, livestock pens). It also can be applied to livestock coat as an insect repellent/contact insecticide.
Fly Larva: Keeps fly larvae from developing in manure, which makes a significant reduction in the fly population.
Ps. Sorry no idea how to crsh the 14mm to 7mm
