I have 5 plants still in nursery containers. I put 12 in the ground in October. They all look the same with the red in the leaves and the white on them. They are slowly declining. I was thinking some kind of blight or powdery mildew, but I'm still learning pest ID. I had a Euonymous with the same white stuff on the foliage, and I blasted it with a water hose and its still there but the plant looks completely healthy otherwise. Thanks for the responses.