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Strawberries: Leaf petioles have galls

Petiole Galls occur periodically in strawberry fields, especially near weedy borders. One or more galls may occur per petiole. The greenish to reddish galls are 1 to 4 inches in length and somewhat segmented in appearance. Galls have 10 to 35 or more central chambers inside, each containing a small single white larva. The causal insect is not known. Petiole galls appear to have no serious economic impact on the plants.

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