Large mature Lemon tree - Trunk damage
Hello, Thanks in advance for any help.
We have a lovely, large (~20ft) lemon tree in our front yard. In our temperate Bay Area CA climate, it produces lemons nearly year round. I drink a lot of fresh lemonade. I am not positive the species of lemon but my best guess is Meyer.
I am posting because the tree trunk looks very unhealthy. It has looked this way since we purchased the house 1.5 years ago. In that time it has not gotten any worse, but I do still worry about losing the tree in the future.
I've posted several pictures at the link at the bottom of the page (my blog)
Thanks in advance for any thoughts and suggestions, and please let me know any follow-up questions that might help with a diagnosis. Thank you!
Here is a link that might be useful: LemonTreePictures