Answer: Peanut plants are generally pest free, with the exception of aphids which like to dine on the foliage. It's possible that the blossoms of the plant were not pollinated and therefore did not develop nuts within the pods. If you've noticed that something actually chewed through the pods and consumed the nuts, I'd guess that wireworms, or the larvae of beetles did the damage. It's impossible to tell without seeing the damage first hand, but if you suspect ground dwelling bad guys, try planting your peanuts (and other root crops) in a different area of the garden next year. Without a ready source of food, the grubs will die out.
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