Hi everone,
I have a black oak tree out on my median, planted ten years ago. In the past year or two, I've noticed that the outer ends of many of the branches lack leaves. I don't notice any insects or bark problems. I did try giving it a few tree food spikes last year but they didn't help.
The attached photo shows how the branches lack leaves towards the ends. Unfortunately you can't see how this affects the branches pointing towards the camera, just those to the sides, but almost all the branches appear affected.
Any ideas or advice? Thank you.