Interesting question. The ash trees were killed by the ash bore i assume. The question i have is how old were the cherry trees and what kind of maple tree do you have. Cherry trees ,as they age, can have bore problems. The maple tree , i would like to have what kind of maple plus is it relatively old. Most maples will have dead branches but survive for any years. My maple trees are very old and shed their dead branches over the seasons. 

An arborist could assist in helping with your questions. 

I do not believe your problems with the trees  are connected. I do know the ash tree bore does attack some maple trees but i doubt if this is your problem. 

To summarize, Ash trees were killed by borers, cherry trees are short lived and as they get older have many problems. The maple could be OK but not knowing the type of tree and age of the tree i cannot give you a definite answer.