be eaten by; be bitten or infested byThis is a compositional expression consisting of the particle に, marking the agent, and the passive form 食われる, “be eaten.” It is commonly used for being eaten or damaged by insects or animals, as in 虫に食われる, “be eaten by insects.”
JA: この野菜は虫に食われる前に収穫しましょう。
EN: Let's harvest these vegetables before they are eaten by insects.