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A black raspberry shoot with deformed, undersized leaves due to orange rust, Arthuriomyces peckianus.

A black raspberry shoot with deformed, undersized leaves due to orange rust. Credit: Penn State Department of Plant Pathology & Environmental Microbiology Archives, Penn State University, 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: Penn State Department of Plant Pathology & Environmental Microbiology Archives, Penn State University, Bugwood.org
Licensed under a Creative Commons Attribution-Noncommercial 3.0 License
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