Tag Archives

Archive of posts published in the category: Cercospora leaf spot
Sep
23

Disease 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.

Jun
18

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 leafspot on rose. Photo provided by: Paul Bachi, University of Kentucky Research & Education Center, Bugwood.orgCedar apple rust. Photo provided by: USDA Forest Service – Region 8…

Apr
23

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: http://edis.ifas.ufl.edu/LyraEDISServlet?command=getImageDetailℑ_soid=FIGURE%201&document;_soid=PP267&document;_version=42330Kabatina blight on juniper. Photo found at: http://urbanext.illinois.edu/hortanswers/detailproblem.cfm?PathogenID=20

Aug
14

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: http://www.aces.edu/pubs/docs/A/ANR-1212/Cercospora leaf spot on rose. Photo provided by: Paul Bachi, University of Kentucky Research & Education Center, Bugwood.orgDaylily leafstreak. Photo…

Sep
15

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 caterpillar. Photo by: Gerald J. Lenhard, , Bugwood.orgPuss caterpillar. Photo by: Lacy L. Hyche, Auburn University, Bugwood.orgPlumbago foliar…

Sep
15

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. Photo by: Robert L. Anderson, USDA Forest Service, Bugwood.org

Sep
7

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, USDA Forest Service, Bugwood.org

Aug
3

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 for Home Gardening, IPM Cercospora leaf spot on lower leaf surface of Endless Summer big leaf…