I posted up on the diseases thread, and we identified I earlier had woolly apple aphid, but I don’t believe that is why I intermittently have branches dying.
3 years ago, there was a lot of hail damage, and I think this 25’ apple had fireblight. I’m not sure if that is still what is going on here, or if it is possibly lack of watering (not trying to produce fruit this year, as the tree is getting grafted over). This happened last year, as well.
Can anyone suggest why I randomly have branches dying throughout the tree? I grafted a dozen varieties this year, and am a bit concerned they will be hit.