Hybrid maple tree
We have a hybrid maple tree that we planted 4 years ago. Late last spring and again late this spring our tree lost all of its leaves. Last year it grew another set of leaves which stayed on until later in the fall it looks like it is going to grow new leaves again this year. I have never heard of this happening before, can you give an explanation?
Pre-mature leaf drop like that can be related to a pest or disease issue, or drought stress.
A good inspection of the tree; its bark, branches and leaves that have dropped may have more clues.