I have 3 new Sugar Maple trees in my front yard. Two of them have browning leaves and they are falling from the tree. The third one appears to be fine.

I had an arborist (certified) come in to fix the grade (installer planted them really deep), aerate around the trees, and cut girdling roots. They also mixed in some compost. I also sprayed them with some worm compost tea (could this have burned the leaves?).

Now I don't know what to do because they have a 1-year warranty but they were dormant when planted in March so I really just have until the fall to decide if I should ask for replacements. Then I wonder if they will blame the arborist and try to back out of their warranty.

Does anyone know what is wrong with these trees and if they will/will not survive?

Here are pictures:

Tree 1 is losing on top

Tree 2 is losing on bottom mostly, some top