What's this in the middle of the tree trunk?
When we moved here a huge ivy was growing through an old cherry tree. Last December we got a tree surgeon to prune the tree and remove as much of the ivy as possible. He cut chunks from the main stems of the ivy, which led to much of it dying.
Today I tried to remove the dead ivy, only to discover that the cherry tree, right in the centre of its trunk, has a large area of sponge like sandy bit, which must be a dead part of the tree.
I've never seen anything like it. Does this mean the tree is dying, or even worse, might be brought down by wind and rain?
I would be most grateful for your help and advice.