Bacterial leaf scorch. Photo provided by: Edward L. Barnard, Florida Department of Agriculture and Consumer Services, Bugwood.org
Yellow oxalis. Photo provided by: Ted Bodner, Southern Weed Science Society, Bugwood.org
Juniper scale adults. Photo by: United States National Collection of Scale Insects Photographs Archive, USDA Agricultural Research Service, Bugwood.org.
Dogwood sawflies feeding. Photo provided by: Brian Kunkel, Ornamentals IPM Specialist, University of Delaware
Tag Archives: bacterial leaf scorch
Disease Hotline Issue 21
Horse chestnut leaf blotch. Photo by: M. Petitjean, University of Massachusetts Extension & found at: http://www.umassgreeninfo.org/fact_sheets/diseases/guignardia_leaf_blotch.pdf
Oak infested with oak anthracnose. Photo provided by: Joseph O’Brien, USDA Forest Service, Bugwood.org
Oak anthracnose on oak leaf. Photo provided by: Joseph O’Brien, USDA Forest Service, Bugwood.org
Close-up of oak anthracnose. Photo provided by: Robert L. Anderson, USDA Forest Service, Bugwood.org
Bacterial leaf scorch. Photo provided by: Randy Cyr, Greentree, Bugwood.org
Glassy-winged sharpshooter vectors Xylella fastidiosa in grape plants, the same bacteria responsible for BLS. A possible vector. Photo provided by: Reyes Garcia III, USDA Agricultural Research Service, Bugwood.org
Grass sharpshooter is also known to vector X. fastidiosa in grape plants. Another potential vector for BLS. Photo provided by: Jack Clark, University of California – Davis, Bugwood.org
Disease Hotline Issue 18
Puffball. Photo provided by: Nancy Gregory, Plant diagnostician, University of Delaware.
Peony blotch on tree peony leaves.
Hollyhock rust. Image found at the following website: http://www.plantpath.iastate.edu/pdc/node/142
Powdery mildew. Photo provided by: Mike Schomaker, Colorado State Forest Service, Bugwood.org
Giant puffball. Photo provided by: Joseph LaForest, University of Georgia, Bugwood.org
Bacterial leaf scorch distant view. Photo provided by: Edward L. Barnard, Florida Department of Agriculture and Consumer Services, Bugwood.org
Bacterial leaf scorch. Photo provided by: Theodor D. Leininger, USDA Forest Service, Bugwood.org
Daylily leaf streak. Image found at http://hyg.aces.uiuc.edu/secure/subscribers/200611b.html.
Disease Hotline Issue 17
Photo from Iowa State University Forestry Extension Website. 
Bacterial Leaf Scorch on Pin Oak
Photo by Jim Peter, The Plant & Pest Diagnostic Laboratory at Purdue University
Bacterial Scorch on Pin Oak
Photo by Jim Peter, The Plant & Pest Diagnostic Laboratory at Purdue University
Bacterial Leaf Scorch on Oak Photographer Edward L. Barnard, Florida Department of Agriculture and Consumer Services
Peony blotch on peony (Paeonia) Image from Missouri Botanical Garden, Kemper Center for Home Horticulture Web Site