Hello. This year my two-stemmed redbud redbud bloomed beautifully, then the leaves were unusually slow to emerge. Those on half the tree wilted before they were fully out; the others emerged, but remain very small and tender (see photo). Thoughts? I assume I should cut back the dead stem (about 2 in. DBH); is it worth waiting to see whether the second stem recovers? Or, if the tree is diseased, better to remove the whole thing? If so, curious whether I need to wait to plant something else, and if I dare try another redbud. (It was the MN hardy variety, and has been lovely for 5+ years.) For a diagnosis, is there anything specific I should be looking for? Thank you for anything you can offer!