Good morning: had to get out and grab some photos. So here’s the update, 18 months post later attempt:
At first, all of the leaves began to die off. The tree lost all the leaves on the ends of each branch as well as the innermost leaves, leaving only a few isolated middle leaves. Those surviving leaves began to die, so I ended up plastic bagging the tree. This then started an issue with fungus, so I had to do daily care on the tree where I would let it dry out, then bag it during the day, then remove the bag at night for air circulation. The leaves never fully recovered, but it didn’t die.
I wasn’t expecting it to leaf out this year, but it did- but only existing buds, no real backbudding or shoot extension. I checked the roots and saw that it in fact had started to respond to the girdle. I cleaned up and re-scarred some areas, reapplied hormone, and continued to nurse the tree.
This fall, it is acting appropriately, and has set some buds for next spring. More importantly, a careful removal of a small amount of soil shows that it has increased roots. At this point, I will probably let it grow for one more year before pruning.


This will need drastic rebuilding of the branch structure, and I will have to do something with that big healed scar.