What would cause green leaves dropping on a Chinese elm? I brush the foliage with my hand and leaves just fall, all green. I'm sure it's not over watered or under watered.
far easier for us if you can post a picture here. Sometimes the more experienced can pick up clues that you are not even aware of when they see the tree.
Looks healthy to me too. My guess is that either it dried out a bit one day and had to shed some leaves to stay alive or possibly these are last year's leaves that are now too old and so being shed similar to autumn leaves.
I have been having the same problem with my seiju elm. It is completely green, and looking healthy but some branches are shedding leaves. I was thinking it was critter damage at first because it kind of looked like the branches were stripped. However I am getting them falling off with a light brush as well, so clearly there are other issues.
Are you keeping the tree indoors year round? Did the tree drop leaves last fall? Are only inner leaves falling off, while the outer leaves remain firmly attached?