Azalea bark scales. Photo provided by: United States National Collection of Scale Insects Photographs Archive, USDA Agricultural Research Service, Bugwood.org
Emerald ash borer adult (nickel in picture for size comparison), serpentine mines packed with frass. Photo provided by: Eric R. Day, Virginia Polytechnic Institute and State University, Bugwood.org
Exobasidium gall on azalea. Photo found at: http://hyg.ipm.illinois.edu/article.php?id=64
Lecanium scales. Photo provided by: James Solomon, USDA Forest Service, Bugwood.org
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