Serviceberry Help

We have two serviceberries on either side of our front door. One side looks full and lush and the other hardly has any leaves left at this point. The branches and trunk seem to have changed colour to a greyish…

Amelanchier Rainbow Pillar

We planted the above shrub/tree in May and I just noticed that the interior leaves have turned yellow and are dropping.  What is the problem and what is the solution. It is about 4 feet tall.…