5. Ground beetles
Large, long-legged, shiny blue-black or brown beetles that hide under rocks and logs during the day, and are fast-moving when disturbed. They feed on slugs, snails, cutworms, root maggots, and Colorado potato beetle larvae. Attract them by providing perennial ground covers, stones, or logs. Rove beetles resemble earwigs without pincers, and feed on many insect pests and like similar conditions to ground beetles.
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