Q.How Can You Tell if a Tree Is Sick
We have trees around us that have branches with no leaves. The leaves on other branches are wilting and falling off. We have had a lot of rain. It is now hot and muggy out. We have two bushes of rose of sharon. One is doing well and the other one close to the bad tree is small and not doing well. What could be wrong?

Certified GKH Gardening Expert
If the trees are not growing leaves, they definitely are sick. What it might be are many different things. I would recommend taking pictures of the problem plants and then taking these to your local extension service. They can help you identify the issue and correct it.