Got these two of four awesome seedlings. The leafed one is Kwanzan. The other is Yoshino. They are about 1 year old.
The leaves came yellow but it seems do be doing well with Fall on us. But I also noticed this shriveling. I don't see any other signs of disease. My thought is keep them healthy and see what happens comes Spring.
Posting this as a concern but I feel that is all I can do.