Hello, I have a very old mulberry tree with blueish mould on a few parts of the trunk. Last summer it gave a big healthy crop. SHould I be concerned about the mould? I have attached a photo of the trunk.
That's a great relief, thank you very much. Why is it a good sign?
Thank you! " Clean air" is not the first thing that springs to mind when I think of the garden so this is something of a surprise.