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 hyrdrangea (Hydrangea macrophylla ‘Bailmer’).
Photo from the Missouri Botanical Garden, Kemper Center for Home Gardening, IPM
Cercospora leaf spot on upper leaf surface of Endless Summer big leaf hyrdrangea (Hydrangea macrophylla ‘Bailmer’).
Photo from Missouri Botanical Gardens, Kemper Center for Home Gardening, IPM
Photo by Jody Fetzer, New York Botanical Garden, Bugwood.org