Observations on the impact of western spruce budworm on the Nezperce National Forest, Idaho, 1972

Public Deposited

Citeable URL: https://ir.library.oregonstate.edu/concern/defaults/mp48sf23g

Descriptions

Attribute Name	Values
Creator	Ciesla, William M. Lood, Rudolph C. Bousfield, Wayne E. United States. Forest Service. Northern Region. State & Private Forestry
Abstract	Aerial surveys of the Nezperce National Forest in Idaho revealed 138,692 acres of aerially visible top kill and tree mortality due to repeated defoliation by western spruce budworm, Choristoneura occidentalis Freeman. A small ground sample indicates that up to 47 percent of the grand fir volume was affected by top kill in some areas. True firs were most severely affected by repeated defoliation, and Engelmann spruce was intermediately affected. No top kill or tree mortality was observed on Douglas-fir.
Resource Type	Technical Report
Date Available	2006-10-31T22:16:12+00:00
Date Issued	1973
Series	Report (United States. Forest Service. Northern Region. State & Private Forestry)
Subject	Conifers -- Diseases and pests -- Idaho -- Nezperce National Forest Defoliation -- Idaho -- Nezperce National Forest Western spruce budworm -- Idaho -- Nezperce National Forest
Rights Statement	Copyright Not Evaluated
Publisher	Missoula, Mont. : USDA, Forest Service, Northern Region, Division of State and Private Forestry
Language	English [eng]
File Format	application/pdf
File Extent	5811378 bytes
Digitization Specifications	Scanned at 600 DPI using a Cannon DR-9080C in TIF format. PDF generated through Capture Perfect using OmniPage Professional 15 for textual OCR.
Replaces	http://hdl.handle.net/1957/3273

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