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Diatomaceous earth (DE) is a naturally occurring, soft, siliceous sedimentary rock that is easily crumbled into a fine white or off-white powder. It is composed of the fossilized remains of diatoms, which are single-celled algae with intricate, hard shells made of silica. This unique composition gives DE its highly abrasive and absorbent properties, making it an effective mechanical insecticide. Its mode of action does not involve chemicals or poisons, instead relying on physical damage to … Read more