Are there any organizations, government or otherwise, that will come to your...

Are there any organizations, government or otherwise, that will come to your property and do an inspection of your trees to identify diseased ones or to look for the latest dreaded insects like the emerald ash borer? Many of my trees do not look healthy but I don’t know anything about trees and I can’t afford to pay someone to come out and inspect them. It’s a long shot, I’m sure, but I thought I’d ask.