Kwanzan Cherry - Ill dropping leaves too early
I have a mature Kwanzan Cherry 12-14ft that was planted from the nursery this past spring. It has been doing very well until premature leaf dropping has become a major issue. Over the past two weeks it has lost about 50% of its leaves. At first there was no visible cause, but now at the end of week two you can see very visible signs of damage on the falling leaves (see pic). Is this cherry leaf spot? I treated the tree today with Chlorothalonil however am wondering if this will address the issue. Also how does one manage a tree that has become ill into next season? Is this condition manageable or is it only time before the tree fails due to stress? Thanks for your thoughts.