Fuji Apple tree

What is causing my Fugi apple trees to do this?

Is it primarily the leaves you are noticing problems with? I can only see some branches of leaves that are browning from this photo but wondering if there is any other evidence of problems on the bark or wood of the tree as well.

It is just the leaves. The rest of the trees are fine

can we get a close-up of some of the affected branches? hard to diagnose anything when standing back from the tree. possibilities include fireblight, boring insects, and more.

I cut all the dead leaves off. If you can zoom in the photo posted, it gives you a good look. Thank You.

hi larry, sorry if i wasn’t clear. on the most affected branches, those dead leaves are covering that area of bark where the tree goes from living to dead. those are the parts that are going to be most diagnostic. now that the leaves are gone would be a great time to take another pic.

failing that, i suspect fireblight, which will require relatively drastic cuts to contain -  which is why the more information we can get, the better for you and for your tree.

2 more pics