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damage blueberries by the females laying eggs on large ripening berries. The larvae hatch, burrow into berries and feed on the pulp for about two weeks, making the berries soft, mushy and unmarketable.Spotted wing drosophila (SWD)
also damage fruit by "stinging" the fruit surface and laying eggs. The SWD larvae hatch and begin feeding on the inside of the fruit, causing soft depressions in blueberries.