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Bark removed from a Phomopsis canker showing where healthy, green and white tissue meets unhealthy vascular tissue that is discolored reddish brown.

Bark removed from a Phomopsis canker, <i>Phomopsis</i> sp., showing where healthy, green and white tissue meets unhealthy vascular tissue that is discolored reddish brown. Credit: Lorraine Graney, Bartlett Tree Experts, 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: Lorraine Graney, Bartlett Tree Experts, Bugwood.org
Licensed under a Creative Commons Attribution-Noncommercial 3.0 License
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