Lawn pests aren't just limited to voles; moles are a huge threat to soil. Many people ask what do moles eat or what does moles eat when they see dirt mounds. Unlike voles, these moles animals are insectivores, meaning a moles animal eats earthworms and grubs. Understanding what does moles eat helps you realize they don't chew grass roots, but their digging ruins lawn structure. If you have active underground tunnels, identifying what do moles eat is the first step toward effective controlling moles.