Gone topless

While I was working in the boss msns garden today, log the fallen and felled trees that we seem to have been working on for ever. There was in the strenghtening wind a very loud crash, the gardener appeared saying a big tree had come down beside the orchard! It never rain but pours, the tree section shown above is what is left, approx 15ft tall and some 12ft around. The rest of the tree had snapped of most of it falling in unused ground between the orchard and the greenhouse, some branches were on a privite hedge but I soon removed them with my trust chainsaw. I have posted the broken crown and a close up of the insect ravage heart would that lead to the fall here. Have a safe night on and all ;-)