Hi, I have had an ERB tree planted in my front yard for about 8 yrs. Every yr she has grown taller and spread her branches and bloomed profusely. However, this yr she did not bloom, but she is not dead. There is a sort of silvery gray moss growing on the bark of the tree and some branches. All the buds were black.
Any ideas what is wrong? How can I repair/help her?
Thanks, she is a great shade tree in front of my west facing garden.
J