Close-up of Iris rust to the left. Photo provided by: Bob Mulrooney, University of Delaware
Monolinia blight on Kwanzan cherry. Photo provided by: Bob Mulrooney, University of Delaware
Photos for azalea leaf gall, cedar apple rust, cedar quince rust & monolinia blight were posted previously. Please use the search function to locate these images.
Cedar apple rust, cedar quince rust, and Iris leaf spot have images already posted to the site. Please use the search function to locate these pictures.
To the left is azalea petal blight. Photo provided by Bob Mulrooney, University of Delaware
Horsechestnut leaf blotch. Photo taken by: M. Petitjean, University of Massachusetts Extension & found at: http://www.umassgreeninfo.org/fact_sheets/diseases/guignardia_leaf_blotch.pdf
Cercospora leafspot on rose. Photo provided by: Paul Bachi, University of Kentucky Research & Education Center, Bugwood.org
Cedar apple rust. Photo provided by: USDA Forest Service – Region 8 Archive, USDA Forest Service, Bugwood.org
Cedar apple rust. Photo provided by: Daniel H. Brown, USDA Forest Service, Bugwood.org
Hemlock woolly adelgid egg masses. Photo provided by: Brian Kunkel, Ornamentals IPM Extension Specialist, University of Delaware
Roseslug sawfly damage to a rose leaf. Photo provided by: Brian Kunkel, Ornamentals IPM Extension Specialist, University of Delaware
Roseslug sawfly larva feeding on rose leaf. Photo provided by: Brian Kunkel, Ornamentals IPM Extension Specialist, University of Delaware
Cedar apple rust. Photo provided by: Daniel H. Brown, USDA Forest Service, Bugwood.org
Cedar apple rust. Photo provided by: USDA Forest Service – Region 8 Archive, USDA Forest Service, Bugwood.org
Fruiting bodies of cedar-apple rust galls. Photo by: Joseph O’Brien, USDA Forest Service, Bugwood.org.
Cedar-apple rust on crabapple leaf. Photo by: University of Georgia Plant Pathology Archive, University of Georgia, Bugwood.org.
Spot anthracnose on dogwood petal. Photo by: Division of Plant Industry Archive, Florida Department of Agriculture and Consumer Services, Bugwood.org.