Armillaria ostoyae lesions on Douglas-fir. Presentation by Mike Cruikshank: Field Studies Agree and Extend the Results of Greenhouse Trials for Host Resistance of Douglas-fir to Infection by Armillaria ostoyae. 58th Annual Western International Forest Disease Work Conference, held October 4-8, 2010 in Valemount, BC.
For proceedings from this work conference see:
www.wifdwc.org/past-proceedings1 Photo by: Kristen Chadwick
Date: October 7, 2010
More of Kristen's photos are located here:
www.flickr.com/photos/armillaria01/albums/72157594151075963 Photo credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection, Westside Service Center. Kristen Chadwick collection.
Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection:
www.fs.usda.gov/main/r6/forest-grasslandhealth
