Newbie Sour Cherry Problem
Last Summer I planted a Northstar Sour Cherry from a local nursery here in Vermont. This spring the tree, which is about 4.5 feet tall, flowered beautifully, and many small cherries set. Now something seems to be wrong. Many of the smallest cherries are turning yellow/pink and seem to be dropping off or mummifying. The small leaves at the base of the stem also seem to be drying up and dying. Some of the larger green fruit have black dimpled-in areas near the stem. The leafing pattern seems odd to me as well, but then I'm new at this. We're getting healthy new growth at the ends of twigs and branches, but along the branches where last years growth was the leaves are staying very small, in small clusters. Looking around on-line I think maybe we have bacterial canker. I did notice a reddish orange gel oozing out on one spot of the trunk last summer when or shortly after I planted it. Not knowing what it was, I wiped it off. Haven't seen it since.
Any help would be appreciated with identification of the problem and treatments/management.