Comparison of Western Spruce Budworm Populations and Damage on Grand Fir and Douglas-fir Trees

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Total Pages : 24 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Comparison of Western Spruce Budworm Populations and Damage on Grand Fir and Douglas-fir Trees by : Valentine M. Carolin

Download or read book Comparison of Western Spruce Budworm Populations and Damage on Grand Fir and Douglas-fir Trees written by Valentine M. Carolin and published by . This book was released on 1975 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Comparison of Western Spruce Budworm Populations and Damage on Grand Fir and Douglas-Fir Trees (Classic Reprint)

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Publisher : Forgotten Books
ISBN 13 : 9780260884695
Total Pages : 34 pages
Book Rating : 4.8/5 (846 download)

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Book Synopsis Comparison of Western Spruce Budworm Populations and Damage on Grand Fir and Douglas-Fir Trees (Classic Reprint) by : V. M. Carolin

Download or read book Comparison of Western Spruce Budworm Populations and Damage on Grand Fir and Douglas-Fir Trees (Classic Reprint) written by V. M. Carolin and published by Forgotten Books. This book was released on 2017-11-18 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Comparison of Western Spruce Budworm Populations and Damage on Grand Fir and Douglas-Fir Trees Pap. Pnw - l95, 16 p. Illus. Pacific Northwest Forest and Range Experiment Station, Portland, Oregon. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Differential Defoliation of Neighboring Douglas-fir Trees by Western Spruce Budworm

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ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Differential Defoliation of Neighboring Douglas-fir Trees by Western Spruce Budworm by : Geral I. McDonald

Download or read book Differential Defoliation of Neighboring Douglas-fir Trees by Western Spruce Budworm written by Geral I. McDonald and published by . This book was released on 1981 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Sampling Populations of Western Spruce Budworm and Predicting Defoliation on Douglas-fir in Eastern Oregon

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ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Sampling Populations of Western Spruce Budworm and Predicting Defoliation on Douglas-fir in Eastern Oregon by : Valentine M. Carolin

Download or read book Sampling Populations of Western Spruce Budworm and Predicting Defoliation on Douglas-fir in Eastern Oregon written by Valentine M. Carolin and published by . This book was released on 1972 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Managing Trees and Stands Susceptible to Western Spruce Budworm

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ISBN 13 :
Total Pages : 130 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Managing Trees and Stands Susceptible to Western Spruce Budworm by : Martha H. Brookes

Download or read book Managing Trees and Stands Susceptible to Western Spruce Budworm written by Martha H. Brookes and published by . This book was released on 1985 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Resistance of Douglas-fir to Western Spruce Budworm

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ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Resistance of Douglas-fir to Western Spruce Budworm by : Geral I. McDonald

Download or read book Resistance of Douglas-fir to Western Spruce Budworm written by Geral I. McDonald and published by . This book was released on 1979 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Stem Volume Losses in Grand Firs Topkilled by Western Spruce Budworm in Idaho

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ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Stem Volume Losses in Grand Firs Topkilled by Western Spruce Budworm in Idaho by : George T. Ferrell

Download or read book Stem Volume Losses in Grand Firs Topkilled by Western Spruce Budworm in Idaho written by George T. Ferrell and published by . This book was released on 1982 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mature grand firs (Abies grandis [Dougl. ex D. Don] Lindl.) were sampled in two stands, one cutover and one virgin, in the Little Salmon River drainage in west-central Idaho, to estimate stem volume losses associated with topkilling. Damage to the stands resulted from three outbreaks of western spruce budworm (Choristoneura occidentalis Freeman) in 1922-30, 1952-55, and 1969-78. Stems of the firs were dissected and examined for reductions in height and radial growth, stem deformities, and decay associated with topkills. Merchantable volume losses (to a minimum 4-inch diameter top) were calculated for each outbreak. Greatest volume loss was associated with tops killed by the 1922-30 outbreak. Loss varied widely among the trees and stands sampled. In the cutover stand, which received a sanitation cutting in the late 1960's, firs topkilled by the 1922-30 outbreak averaged losses of 9.5 ft3 (0.3 m3), amounting to 11.1 percent of merchantable stem volume. In the vigin stand, losses averaged 26.3 ft3 (0.3 m3) or 20.5 percent of stem volume. Topkill-associated decays, caused mainly by Indian paint fungus (Echinodontium tinctorium Ell. and Ev.) were responsible for most of this loss. Smaller volume losses were recorded in firs topkilled by the 1952-55 outbreak. Losses per tree averaged 3.3 ft3 (0.1 m3) or 5.4 percent in the cutover stand, and 0.5 ft3 (0.02 m3) or 0.3 percent in the virgin stand. These losses resulted mainly from height growth reductions rather than decay. No merchantable volume losses were recorded for the 1969-78 outbreak.

Sampling Populations of Western Spruce Budworm and Predicting Defoliation on Douglas-Fir in Eastern Oregon (Classic Reprint)

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Publisher : Forgotten Books
ISBN 13 : 9781390871586
Total Pages : 54 pages
Book Rating : 4.8/5 (715 download)

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Book Synopsis Sampling Populations of Western Spruce Budworm and Predicting Defoliation on Douglas-Fir in Eastern Oregon (Classic Reprint) by : Valentine M. Carolin

Download or read book Sampling Populations of Western Spruce Budworm and Predicting Defoliation on Douglas-Fir in Eastern Oregon (Classic Reprint) written by Valentine M. Carolin and published by Forgotten Books. This book was released on 2018-09-07 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Sampling Populations of Western Spruce Budworm and Predicting Defoliation on Douglas-Fir in Eastern Oregon A cluster design appeared to be the best solution for sampling these stages. For low, medium, and high populations, number and size of clusters per stand and number of stands were determined for means with an acceptable sampling error of 20 percent, at p z 0. 05, and also other precision and confidence levels. Sampling requirements were particularly great for low egg populations and medium populations of larvae in buds. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Losses Associated with Douglas-fir and True Fir Tops Killed by Western Spruce Budworm in Eastern Washington

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ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Losses Associated with Douglas-fir and True Fir Tops Killed by Western Spruce Budworm in Eastern Washington by : Paul E. Aho

Download or read book Losses Associated with Douglas-fir and True Fir Tops Killed by Western Spruce Budworm in Eastern Washington written by Paul E. Aho and published by . This book was released on 1984 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Losses Associated with Douglas-Fir and True Fir Tops Killed by Western Spruce Budworm in Eastern Washington (Classic Reprint)

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Publisher : Forgotten Books
ISBN 13 : 9780364294253
Total Pages : 20 pages
Book Rating : 4.2/5 (942 download)

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Book Synopsis Losses Associated with Douglas-Fir and True Fir Tops Killed by Western Spruce Budworm in Eastern Washington (Classic Reprint) by : Paul E. Aho

Download or read book Losses Associated with Douglas-Fir and True Fir Tops Killed by Western Spruce Budworm in Eastern Washington (Classic Reprint) written by Paul E. Aho and published by Forgotten Books. This book was released on 2018-03-18 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Losses Associated With Douglas-Fir and True Fir Tops Killed by Western Spruce Budworm in Eastern Washington Keywords; Insect damage -forest, increment (height), crown damage, decay (wood), heartwood rot, western spruce budworm, Douglas-fir, Pseudo tsuga menziesii, true fir, Abies spp., Washington (eastern), eastern Washington. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Historical Patterns of Western Spruce Budworm and Douglas-fir Tussock Moth Outbreaks in the Northern Blue Mountains, Oregon, Since A.D. 1700

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ISBN 13 :
Total Pages : 38 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Historical Patterns of Western Spruce Budworm and Douglas-fir Tussock Moth Outbreaks in the Northern Blue Mountains, Oregon, Since A.D. 1700 by :

Download or read book Historical Patterns of Western Spruce Budworm and Douglas-fir Tussock Moth Outbreaks in the Northern Blue Mountains, Oregon, Since A.D. 1700 written by and published by . This book was released on 1995 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Distribution of Western Spruce Budworm Egg Masses on White Fir and Douglas-fir

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ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Distribution of Western Spruce Budworm Egg Masses on White Fir and Douglas-fir by : J. M. Schmid

Download or read book Distribution of Western Spruce Budworm Egg Masses on White Fir and Douglas-fir written by J. M. Schmid and published by . This book was released on 1982 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Effect of Western Spruce Budworm on Douglas-fir Cone Production in Western Montana

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ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Effect of Western Spruce Budworm on Douglas-fir Cone Production in Western Montana by : Allen B. Chrisman

Download or read book Effect of Western Spruce Budworm on Douglas-fir Cone Production in Western Montana written by Allen B. Chrisman and published by . This book was released on 1983 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Case History of Population Change in a Bacillus Thuringiensis-treated Vs. an Untreated Outbreak of the Western Spruce Budworm

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ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Case History of Population Change in a Bacillus Thuringiensis-treated Vs. an Untreated Outbreak of the Western Spruce Budworm by : Richard R. Mason

Download or read book Case History of Population Change in a Bacillus Thuringiensis-treated Vs. an Untreated Outbreak of the Western Spruce Budworm written by Richard R. Mason and published by . This book was released on 1996 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Outbreaks of the Western Spruce Budworm in the American Northern Rocky Mountain Area from 1922 Through 1971

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ISBN 13 :
Total Pages : 152 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Outbreaks of the Western Spruce Budworm in the American Northern Rocky Mountain Area from 1922 Through 1971 by : Philip Cornwell Johnson

Download or read book Outbreaks of the Western Spruce Budworm in the American Northern Rocky Mountain Area from 1922 Through 1971 written by Philip Cornwell Johnson and published by . This book was released on 1975 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Historical Patterns of Western Spruce Budworm and Douglas-Fir Tussock Moth Outbreaks in the Northern Blue Mountains, Oregon, Since A. D. 1700 (Classic Reprint)

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Publisher : Forgotten Books
ISBN 13 : 9780331410006
Total Pages : 42 pages
Book Rating : 4.4/5 (1 download)

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Book Synopsis Historical Patterns of Western Spruce Budworm and Douglas-Fir Tussock Moth Outbreaks in the Northern Blue Mountains, Oregon, Since A. D. 1700 (Classic Reprint) by : Thomas W. Swetnam

Download or read book Historical Patterns of Western Spruce Budworm and Douglas-Fir Tussock Moth Outbreaks in the Northern Blue Mountains, Oregon, Since A. D. 1700 (Classic Reprint) written by Thomas W. Swetnam and published by Forgotten Books. This book was released on 2017-11-19 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Historical Patterns of Western Spruce Budworm and Douglas-Fir Tussock Moth Outbreaks in the Northern Blue Mountains, Oregon, Since A. D. 1700 The objectives of this study were to reconstruct and analyze a multicentury history of budworm and tussock moth outbreaks in old-growth mixed-conifer stands of the north ern Blue Mountains and Eagle Cap edemess in northeastern Oregon. We were par ticularly interested in assessing possible changes in outbreak dynamics in the 2oth century relative to previous centuries. Our starting point for this study was observa tions of radial growth responses to defoliation by these two insects in previous tree ring studies conducted within the region (brubaker 1978; Brubaker and Greene 1979; Vcman 1980, From this work it was evident that characteristic tree-ring pat terns (hereafter called signatures) caused by budworms and tussock moths might be detected and isolated in radial increment time series. Following this lead, we applied dendrochronological methods developed and demonstrated in the southern Rocky Mountains (swetnam and others 1985; Swetnam and Lynch 1989, 1993) to tree-ring collections from the Blue Mountains. In this paper, we describe the results of our investigations in the northern Blue Mountains; we focused primarily on the historical patterns of change in regional-scale outbreaks among all sampled stands. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

The Impact of Defoliation by the Spruce Budworm on the Growth, Specific Gravity and Competitive Abilities of Three Tree Species in Northeastern Oregon

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ISBN 13 :
Total Pages : 480 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis The Impact of Defoliation by the Spruce Budworm on the Growth, Specific Gravity and Competitive Abilities of Three Tree Species in Northeastern Oregon by : Carroll Burns Williams

Download or read book The Impact of Defoliation by the Spruce Budworm on the Growth, Specific Gravity and Competitive Abilities of Three Tree Species in Northeastern Oregon written by Carroll Burns Williams and published by . This book was released on 1963 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: