Winding trail through surface of chrysanthemum leaf caused by the chrysanthemum leafminer, Chromatomyia syngenesiae.

White, winding trail through surface of chrsanthemum leaf. 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