Cybercarter

Thank you for your response. I'm not sure about areas of bark death until I have a closer inspection. The attached picture shows another area of the tree which is not looking so well. I will let you know if there is any bark death later when I've been out to inspect. If there is, how and what is happening? PS: I can't say that I noticed anything untowards in the crown last year

After a significant clear out of a very overgrown border I discovered one of my mature beech tree trunks has become pretty unsightly I think possibly due to collective standing water in a lower v shaped branch. The mature garden beech trees were professionally lopped two years ago and appear to have responded well so you can imagine my utter shock when I discovered the condition of this particular trunk. Can anyone please advise if this will eventually lead to die back and if there is anything I can do to help the tree? Please see attached photo. Any feedback would be appreciated.