I live in coastal North Carolina. The leaves of my two 5 year old crêpe myrtles at the top of my driveway suddenly started to change color then drop. These trees are about 17 feet and have been healthy until now. They are both on drip irrigation and we haven't done a single thing differently with regards to the trees in past years. The leaves turned yellow with dark spots or marks. The entire center of the canopy of both trees is naked.
Any ideas?
riverqueen