Evaluation of the Douglas-fir beetle infestation in the North Fork Clearwater River drainage, Idaho--1972

Öffentlich Deposited

Citeable URL: https://ir.library.oregonstate.edu/concern/defaults/hx11xg63f

Descriptions

Attribute Name	Values
Creator	McGregor, Mark D. Bousfield, Wayne E. United States. Forest Service. Northern Region. State & Private Forestry
Abstract	The Douglas-fir beetle, Dendroctonus pseudotsugae Hopk., has caused extensive tree mortality for the third consecutive year in the North Fork Clearwater River drainage in northern Idaho. In 1972, the infestation encompassed about 494,080 acres of commercial forest lands in this drainage. It was estimated from a tw-stage aerial photo-ground survey that 240,00 trees were killed during the 3-year period 1970-72, resulting in a loss of about 109 MMBF of Douglas-fir sawtimber. Infestation levels are expected to decline in 1973, but significant tree mortality is expected in Localized infestation centers.
Resource Type	Technical Report
Date Available	2006-10-30T18:34:55+00:00
Date Issued	1972
Series	Insect and disease report (Missoula, Mont.)
Subject	Douglas fir beetle -- Idaho -- Clearwater River, North Fork, Watershed Douglas fir -- Diseases and pests -- Idaho -- Clearwater River, North Fork, Watershed
Urheberrechts-Erklärung	Copyright Not Evaluated
Publisher	Missoula, Mont. : U.S Forest Service, Northern Region, Division of State and Private Forestry
Language	English [eng]
File Format	application/pdf
File Extent	2182699 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/1957/3255

Miniaturansicht	Titel	Hochladedatum	Sichtbarkeit	Aktionen
	no._I-72-10_ocr.pdf	2017-07-19	Öffentlich	Herunterladen