Hi, Jean. I've just posted a response to the second question you submitted. The excavation you mentioned seemed to point to a probable cause. The symptoms you describe--early leaf drop, few blooms, dead branches and small leaves--are typical for trees that have experienced a substantial root or trunk injury. I suggested a number of ways you can aid the tree. You might also contact an ISA Certified Arborist (find one near you at www.treesaregood.com) to see if he or she'd be willing to come out and take a look.