ITOH Peony Problem
See attached pictures... Can you suggest what the issue is and what I should do? Thanks Dave Mills
Outside United States horticulture
A very sad looking peony indeed, and Itoh's are so gorgeous in bloom!
It's not possible to make a definitive diagnosis, as there are many variables that aren't necessarily visible in a photo. But it does look like some kind of fungal infection as there seems to be a whitish coating, as well a blotches on the stems and some leaves. Here is a good fact sheet with detailed descriptions and images that may help you narrow the problem down since they mention other features to look for in these cases. (http://www.missouribotanicalgarden.org/Portals/0/Gardening/Gardening%20Help/Visual%20Guides/Peony%20...)