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Disease Hotline Issue 19
Microscopic close-up of Cercospora leaf spot on Endless Summer big leaf hyrdrangea (Hydrangea macrophylla ‘Bailmer’); note, purple halo around spot. Photo by Missouri Botanical Garden, Kemper Center...
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Disease Hotline Issue 24
Cercospora on Sourwood Photo by Bob Mulrooney, University of Delaware Walnut Anthracnose Photo from the University of Minnesota Yard and Garden Line News Tar Spot on Maple Photo by Steven Katovich,...
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Disease Hotline Issue 23
Cercospora on Sourwood. Photo by: Bob Mulrooney, Plant Pathologist, University of DelawareOak anthracnose from a distance. Photo by: Joseph O’Brien, USDA Forest Service, Bugwood.orgOak anthracnose....
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What’s Hot HL Issue 23
Cercospora leafspot on rose. Photo by: Bob Mulrooney, Plant Pathologist, University of DelawarePyracantha scab on fruits. Photo by: Bob Mulrooney, Plant Pathologist, University of DelawarePuss...
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Disease Hotline Issue 20
Alfalfa mosaic virus on potato. Photo provided by: Howard F. Schwartz, Colorado State University, Bugwood.orgCercospora leaf spot on Bigleaf Hydrangea. Photo found at:...
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Disease Hotline Issue 4
Black spot on rose. Photo provided by: Division of Plant Industry Archive, Florida Department of Agriculture and Consumer Services, Bugwood.orgCercospora leaf spot on rose. Photo found at:...
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Disease Hotline Issue 12
Horsechestnut leaf blotch. Photo taken by: M. Petitjean, University of Massachusetts Extension & found at: http://www.umassgreeninfo.org/fact_sheets/diseases/guignardia_leaf_blotch.pdfCercospora...
View ArticleDisease Hotline Issue 25
Photos of Septoria leaf spot, Cercospora leaf spot, fairy rings, and stink horns have all been posted previously. Please use the search function to locate these images.
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