Black pycnidia of Phomopsis canker, Phomopsis sp., that erupted from a branch canker, some extruding cream-colored tendrils of asexual spores (conidia), magnified.

Black pycnidia of Phomopsis canker that erupted from a branch canker, some extruding cream-colored tendrils of asexual spores (conidia), magnified. Credit: Bruce Watt, University of Maine, 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: Bruce Watt, University of Maine, Bugwood.org
Licensed under a Creative Commons Attribution-Noncommercial 3.0 License