Moles
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Moles are basically good guys. Moles eat lots of undesirable soil-dwelling grubs and beetles and aerate the soil in lawns and planted beds. The benefit of their eliminating grubs is somewhat offset by the fact that they also eat earthworms, which are valuable soil builders. Fortunately in a healthy landscape that is not a problem. The healthier your soil, the more earthworms it contains, and the less chance the mole is going to upset the population balance of earthworms.