Hi Everyone, My Arctostaphylos uva ursi has a pale grey mildew on almost all of the old leaves. On many of the leaves the spots have merged to cover the entire leaf. I've attached a photo. There are two things I'm worried about and would appreciate any thoughts or advice on: 1. How bad is this and should I anticipate losing or removing this plant? 2. Could this mildew spread to my Arctostaphylos densiflora? Thanks! C.
