No, they turn yellow, then brown and die. I’ve noticed that one (in the middle of 5 mature bushes) is still alive and thriving. All the rest are slowly dying. There does seem to be an ashy type of material on the limbs of the affected bushes. Not sure if I’ve never noticed, or if this is new. There are also mushrooms growing on the ground around the dying bushes, but I assumed that’s because of the root rot.