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Bark damaged (removed in scattered patches) on the trunk of a large oak tree due to woodpeckers feeding on larvae of goldspotted oak borer, Agrilus auroguttatus.

Bark damaged (removed in scattered patches) on the trunk of a large oak tree due to woodpeckers feeding on larvae of goldspotted oak borer. Credit: Mark S. Hoddle, University of California, Riverside, Bugwood.org<br />Licensed under a <a href="https://creativecommons.org/licenses/by-nc/3.0/us/">Creative Commons Attribution-Noncommercial 3.0 License</a>
Credit: Mark S. Hoddle, University of California, Riverside, Bugwood.org
Licensed under a Creative Commons Attribution-Noncommercial 3.0 License
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