If you go hang out at the farmers type chemical stores you'll be very surprised what you find.
But in saying that there's horses for courses, the most likely fungi to invade trees up here would be Phelinus noxious, Ganoderma, Armillaria, Phytophthora & Anthracnose.
Some PDF docs I loaded up worth a read.
1.7mb
http://www.treeworld.info/manualuplo...ssingpaint.pdf
3.2mb
http://www.treeworld.info/manualuplo...comparison.pdf
201kb and well worth a read
http://www.treeworld.info/attachment...1&d=1214699630