Oak Vein Pocket Galls

This was a new one for me …

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Oak vein pocket galls apparently result from the larval stage of small flies called gall midges.

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The tiny maggots move to the leaf vein and begin eating. This causes gall tissue to form and to cover the feeding larvae in a few days. Adult gall midges are teeny flies that grow to 3mm.

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2 responses to this post.

  1. I’ve seen a lot of different galls but never these,

    Reply

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