A three year evaluation of Douglas-fir cone and seed insects in Montana and Yellowstone National Park

Pubblico Deposited

Citeable URL: https://ir.library.oregonstate.edu/concern/defaults/f4752h88q

Descriptions

Attribute Name	Values
Creator	Dewey, Jerald E. United States. Forest Service. Northern Region. State & Private Forestry
Abstract	A 3-year evaluation of Douglas-fir cones in Montana and Yellowstone National Park, Wyoming, showed the western spruce budworm, Choristoneura occidentalis Freeman, and midges were the most common and injurious insects found each year. Injury was so severe at some plots that no sound seeds could be found.
Resource Type	Technical Report
Date Available	2006-10-18T17:59:36+00:00
Date Issued	1972
Series	Report (United States. Forest Service. Northern Region. State & Private Forestry)
Subject	Yellowstone National Park Western spruce budworm -- Yellowstone National Park Douglas fir -- Seeds -- Montana Douglas fir -- Diseases and pests -- Montana Douglas fir -- Seeds -- Yellowstone National Park Douglas fir -- Diseases and pests -- Yellowstone National Park Western spruce budworm -- Montana
Dichiarazione dei diritti	Copyright Not Evaluated
Publisher	Missoula, Mont. : U.S. Dept. of Agriculture, Forest Service, Division of State and Private Forestry, Northern Region
Language	English [eng]
File Format	application/pdf
File Extent	7987901 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/1957/3172

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