PNW Arborists might be interested...

[SouthSoundTree]

...in this book, Common Tree Diseases of British Columbia, free thanks to the Canadian Forest Service.
http://cfs.nrcan.gc.ca/publications?id=4633

Additionally,
Diseases and Insects website
http://forestry-dev.org/diseases/ctd/index_e.html

 

[canadiantreeman]

http://www.for.gov.bc.ca/hfp/publications/00198/index.htm#dwarf

This one's a gooder too.

Nice links, thanks. I ordered up a copy of the book yesterday.

 

[sotc]

Cool, thanks Sean

 

[Paul B]

There is a number of free publications at that site, I think I have at least 3 or 4 books, a handful of leaflets and a couple disks with archaic software.
One that I got recently is from Canadian food inspection agency (CFIA) titled: exotic forest insect guidebook, ISBN: 0-662-43977-5
copyright 2004, reprint 2006
Troy Kimoto, Marnie Duthie-Holt

online version: http://www.collectionscanada.gc.ca/....ca/english/plaveg/pestrava/exot/introe.shtml