Earwigs inspire terror with those giant pincer claws on their backside. Those claws are used to grasp prey, including slugs, aphids and insect larvae. They’re also used to fend off predators. Earwigs fill two roles in the garden. On the positive side, they scavenge and consume decaying organic matter and eat other plant pests. But when populations are high, they can damage desirable plants by feeding on the soft tissue of seedlings, new shoots and flower petals. One easy way to deter earwigs is placing rolled up newspapers around the garden as traps. The earwigs crawl inside, and you can shake them into a bucket of soapy water. Diatomaceous earth also works against earwigs. Sprinkle it at the base of plants, on earwig clusters or anywhere earwig populations are high.