tree is half dead

by jason shafer
(mentor, oh)

I have a tree in my yard, that I believe is a weeping cherry, it sits near my property line. We started to notice that half the tree looked dead, brown leaves, instead of the green ones. Any idea what is going on? Is this something that cane be fixed? I have a weeping willow in my back yard that has already died, last year. Is my home the death zone for trees?

thanks,
Jason Shafer