[Highland Park] help with tree fungus..

We have just had our third tree die from a fungus...it came out in the Spring and then last week the leaves died and after consulting a tree doctor he said it was a fungus... This is one a year for us and none of our neighbors seem tohave this problem...anyone else have this problem and if so what do you do to stop it. We live up on Heberton quite close to the park,. Todd