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USFS Logo Research Data Archive
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Displaying items 1 - 4 of 4
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Canker on 15" aspen which has been girdled and killed in 5 years. pen bark moistened to show them in poening position, scale is mm
more info/bigger image
Collection: RMRS Archive Images
Keywords: canker
forest pathology
Organisms: aspen
Location: Pyramid Dist., Routt N.F.; CO; United States
Description: Canker on 15" aspen which has been girdled and killed in 5 years. pen bark moistened to show them in poening position, scale is mm
Date: 6/1961

Nectria-like canker on 9'' aspen at 10' with callus removed
more info/bigger image
Collection: RMRS Archive Images
Keywords: canker
forest pathology
Organisms: aspen
Location: Pyramid Guard Station, Routt N.F.; CO; United States
Description: Nectria-like canker on 9'' aspen at 10' with callus removed
Date: 6/1961

Nectria-like canker on 9'' aspen at 10' with callus removed
more info/bigger image
Collection: RMRS Archive Images
Keywords: canker
forest pathology
Organisms: aspen
Location: Pyramid Guard Station, Routt N.F.; CO; United States
Description: Nectria-like canker on 9'' aspen at 10' with callus removed
Date: 6/1961

Canker on 11'' aspen
more info/bigger image
Collection: RMRS Archive Images
Keywords: canker
forest pathology
Organisms: aspen
Location: Vaughn Lake Campground, Routt N.F.; CO; United States
Description: Canker on 11'' aspen
Date: 6/1961

https://www.fs.usda.gov/rds/imagedb/results?place%5B0%5D=Routt+National+Forest&year%5B%5D=1961