Greetings Cheri and thank you for your question.
Unfortunately, your question requires an on-site visit and evaluation by a tree care specialist (forester, certified arborist, horticulturist, entomologist, or pathologist). Regrettably, I cannot provide an effective answer to your question via the limited information provided above. More often than not, most insect and disease questions require hands-on assessment and evaluation...sorry.
Please try these websites for local contacts:
http://www.dnr.cornell.edu/ext/forestconnect/
http://www.dec.ny.gov/lands/309.html