My rhododendron do not have colorful pink flowers. I have a problem in that individual branches are getting covered with a white film. Then the leaves turn brown and the branch is dead. I've been cutting out these dead branches. But my bushes now have large bare spots. With what should I treat them? Thank you.
My rhododendron do not have colorful pink flowers. I have a problem in that individual branches are getting covered with a white film. Then the leaves turn brown and the branch is dead. I've been cutting out these dead branches. But my bushes now have large bare spots. With what should I treat them? Thank you.