File:Varied growth ring thickness in cross-cut - Armillaria ostoyae lesions on Douglas-fir. Presentation by Mike Cruikshank. 58th Annual Western International Forest Disease Work Conference, 2010, Valemount, BC. (38723510095) (cropped).jpg

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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 conference see: <a href="https://www.wifdwc.org/past-proceedings1" rel="nofollow">www.wifdwc.org/past-proceedings1</a>

Photo by: Kristen Chadwick Date: October 7, 2010

More of Kristen's photos are located here: <a href="https://www.flickr.com/photos/armillaria01/albums/72157594151075963">www.flickr.com/photos/armillaria01/albums/72157594151075963</a>

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: <a href="https://www.fs.usda.gov/main/r6/forest-grasslandhealth" rel="nofollow">www.fs.usda.gov/main/r6/forest-grasslandhealth</a>

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Source 2010. Armillaria ostoyae lesions on Douglas-fir. Presentation by Mike Cruikshank. 58th Annual Western International Forest Disease Work Conference, held October 4-8, 2010 in Valemount, BC.
Author R6, State & Private Forestry, Forest Health Protection
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Public domain
This image or file is a work of a United States Department of Agriculture employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.

English ∙ español ∙ Nederlands ∙ slovenščina ∙ Tiếng Việt ∙ македонски ∙ русский ∙ українська ∙ 日本語 ∙ +/−

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current02:20, 2 August 2021Thumbnail for version as of 02:20, 2 August 20211,242 × 1,482 (673 KB)Ooligan (talk | contribs)File:2010. Armillaria ostoyae lesions on Douglas-fir. Presentation by Mike Cruikshank. 58th Annual Western International Forest Disease Work Conference, held October 4-8, 2010 in Valemount, BC. (38723510095).jpg cropped 68 % horizontally, 43 % vertically using CropTool with lossless mode.

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