Pine needle rust. Photo provided by: Bob Mulrooney, Plant Pathology Extension Specialist, University of Delaware
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Anthracnose on ash. Photo provided by: Joseph O'Brien, USDA Forest Service, Bugwood.org
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Close-up of anthracnose on ash tree leaves. Photo provided by: Joseph O'Brien, USDA Forest Service, Bugwood.org
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Anthracnose on ash leaves. Photo provided by: Virginia Tech Learning Resources Center, Virginia Polytechnic Institute and State University, Bugwood.org
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Phyllosticta leaf spot on a maple tree. Photo provided by: Joseph O'Brien, USDA Forest Service, Bugwood.org
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