DE acts a powerful insecticide which can be used against a variety of garden pests including aphids, ants, mites, earwigs, cockroaches, snails and slugs. However, it shouldn’t harm worms or any beneficial microorganisms in the soil!
Sprinkle the silica-rich powder around the garden on the affected areas. You can spread it by hand or by using a dust applicator bottle. If it rains right after the dust application, it will need to be reapplied.