![](http://bp2.blogger.com/_8xC9bwq6AVU/RrEZ_J5rGoI/AAAAAAAAANs/gnWN0nuN580/s400/cercosporahydrangeaclose.jpg)
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
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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
![](http://bp3.blogger.com/_8xC9bwq6AVU/RrEZFZ5rGmI/AAAAAAAAANc/Jjd6eEjbY8Q/s400/cercosporahydrangea1.jpg)
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
![](http://bp2.blogger.com/_8xC9bwq6AVU/RrEXAJ5rGlI/AAAAAAAAANU/mQEqYjvcGn8/s400/cercosporarose.jpg)
Cercospora on Rose
Photo by Jody Fetzer, New York Botanical Garden, Bugwood.org
![](http://bp1.blogger.com/_8xC9bwq6AVU/RrEVR55rGkI/AAAAAAAAANM/Z4tF_qp07Gc/s400/rose%2520-%2520black%2520spot%2520copy.jpg)
Black Spot on Rose
Photo from the Iowa State University Plant Disease Clinic
![](http://bp3.blogger.com/_8xC9bwq6AVU/RrEVKZ5rGjI/AAAAAAAAANE/qVOJfAe8yBE/s400/black%2520spot%2520copy.jpg)
Black Spot on Rose
Photo from the Iowa State University Plant Disease Clinic
![](http://bp0.blogger.com/_8xC9bwq6AVU/RrET5p5rGiI/AAAAAAAAAM8/dZ2i9LvinW0/s400/Stinkhorn10606.jpg)
Mutinus caninus, a type of stinkhorn, growing on mulch
Photo by Paula Flynn, Extension Plant Pathologist, Iowa State University