Disease Hotline Issue 6

Black spot on rose. Photo provided by: Division of Plant Industry Archive, Florida Department of Agriculture and Consumer Services, Bugwood.org

Powdery mildew on dogwood. Photo found at: http://www.ca.uky.edu/agcollege/plantpathology/ext_files/PPFShtml/PPFS-OR-W-13.pdf

Disease Hotline Issue 4

Black spot on rose. Photo provided by: Division of Plant Industry Archive, Florida Department of Agriculture and Consumer Services, Bugwood.org

Cercospora leaf spot on rose. Photo found at: http://edis.ifas.ufl.edu/LyraEDISServlet?command=getImageDetail&image_soid=FIGURE%201&document_soid=PP267&document_version=42330

Kabatina blight on juniper. Photo found at: http://urbanext.illinois.edu/hortanswers/detailproblem.cfm?PathogenID=20

Disease Hotline Issue 2

Crabapple scab. Photo found at: http://www.ipm.iastate.edu/ipm/hortnews/files/images/Apple%20scab.preview.jpg

Botryosphaeria canker. Photo provided by: University of Georgia Plant Pathology Archive, University of Georgia, Bugwood.org

Black spot on roses. Photo provided by: Yuan-Min Shen, Taichung District Agricultural Research and Extension Station, Bugwood.org

Diseae Hotline Issue 9

Ash rust. Photo provided by: Edward L. Barnard, Florida Department of Agriculture and Consumer Services, Bugwood.org

Black spot on rose. Photo provided by: Division of Plant Industry Archive, Florida Department of Agriculture and Consumer Services, Bugwood.org

Dutch elm disease early stage symptoms. Photo provided by: Joseph O'Brien, USDA Forest Service, Bugwood.org

Dutch elm disease. Photo provided by: William Jacobi, Colorado State University, Bugwood.org

Symptoms of Dutch elm disease. Photo provided by: Fabio Stergulc, Università di Udine, Bugwood.org

Streaking of Dutch elm disease. Photo provided by: Paul H. Peacher, USDA Forest Service, Bugwood.org

Dutch elm disease fruiting bodies. Photo provided by: William Jacobi, Colorado State University, Bugwood.org

Disease Hotline Issue 2

Black spot on roses. Photo by: Brian Kunkel, Ornamentals IPM Specialist, University of Delaware.

Black spot on rose. Photo by: Division of Plant Industry Archive, Florida Department of Agriculture and Consumer Services, Bugwood.org.

Crabapple scab on crabapple tree leaves. Photo by: Bob Mulrooney, Plant Pathologist, University of Delaware.

Crabapple scab on crabapple fruits. Photo by: Bob Mulrooney, Plant Pathologist, University of Delaware.

What's Hot HL Issue 10

Black spot on roses. Photo by: Brian Kunkel, Ornamentals IPM specialist, University of Delaware.

Powdery Mildew on common lilac. Photo by: Whitney Cranshaw, Colorado State University, Bugwood.org.

Fire blight on pear. Photo by: Nancy Gregory, Plant Diagnostician, University of Delaware.

Elm pouch gall (caused by aphids).

Elm pouch gall (caused by aphids). Photos of elm pouch galls by: Brian Kunkel, Ornamentals IPM Specialist, University of Delaware.


Rose slug sawfly feeding damage. Photo by: Tracy Wooten, Sussex County Extension Agent - Horticulture, University of Delaware.

Rose slug sawfly. Photo by: John A. Weidhass, Virginia Polytechnic Institute and State University, Bugwood.org.