Ash Flower Gall – Identification
Q: I have a white ash that has weird green cauliflower-looking growths where the seeds clusters used to be. When I break them open, I find a little worm.
A: The malformation is caused by ash flower gall. A tiny eriophyid mite causes male flowers to grow into an odd greenish, tumor-like structure. Sometimes the lumpy growths also cause leaf distortions.
Despite being unsightly, the galls don’t hurt your tree.
Simply prune them out.
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Ash Flower Gall
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