Could it be a manifestation of fireblight? The cracked bark is odd and I can see whole branches have died off...
I hope I'm wrong and you sort it out.
I'd probably call an arboretum.
Gransnet forums
Gardening
Join the conversation
Registering is free, easy, and means you can join the discussion, watch threads and lots more.
Register now »Already registered? Log in with:
Gransnet »