Help Rhododendron Disease / Parasite ?
Hello Everyone, I live on Long Island (Zone 7) and have several Rhododendron plants that have some discoloration and holes in the leaves. These plants were here when I purchased the home so I cannot comment on the age. They appeared healthy all of last year and throughout the winter. I've attached a picture (not sure how to attach multiple?), I canÃ¢ÂÂt seem to find anything that matches this on the Internet. It's not effecting the entire plant, but all three have leaves that look similar. I was actually planning on doing a heavy pruning of these rhodos after the bloom. Does anyone have any ideas/suggestions? Thank you!
I have some additional pictures.