Diatomaceous earth (DE) kills a variety of insects: Earwigs, slugs, ticks, maggots, grubs, ants… anything that crawls over it. It also kills good insects so i use it on the ground first, away from my honeybees. I use my homemade spray (olive oil and Dawn soap) for aphids, and only use DE if I see my plants with earwigs on them. I check my cabbage and make sure my little praying mantis is safe then I squirt DE all over and under it.