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USFS Logo Research Data Archive
You are here: Home > Search Results > 17723
An 18 inch d.b.h. blackjack dying in the lower crown <b>not</b> due to rust.

imageID: 17723
Description: An 18 inch d.b.h. blackjack dying in the lower crown not due to rust.
Keywords: limb rust
forest pathology
Organisms: ponderosa pine
Original collection id: 1508
Media: B&W print 4 x 5 in. and safety negative
Collection: RMRS Archive Images
Quality: 3
Location: Apache National Forest; AZ; United States
Date(mm/yyyy): 7/1951
Comments: Picture used in the Apache National Forest Cronartium filamentosum Rust survey by F.G. Hawksworth.
Citation: Use of this image is governed by Creative Commons CC BY. If you use the image, please include the following citation:

USDA Forest Service. 2007. Forest Service Research Image Library. Fort Collins, CO: Forest Service Research Data Archive. https://www.fs.usda.gov/rds/imagedb

Your help is appreciated. If you see an image that has any inaccuracy please send a note to the Archive team. Thank you!