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Prediction Of Western Spruce Budworm Defoliation On Douglas Fir
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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:
Book Synopsis Prediction of Western Spruce Budworm Defoliation on Douglas-fir by : Allen T. Bullard
Download or read book Prediction of Western Spruce Budworm Defoliation on Douglas-fir written by Allen T. Bullard and published by . This book was released on 1980 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Prediction of Western Spruce Budworm Defoliation on Douglas-Fir (Classic Reprint) by : Allan T. Bullard
Download or read book Prediction of Western Spruce Budworm Defoliation on Douglas-Fir (Classic Reprint) written by Allan T. Bullard and published by Forgotten Books. This book was released on 2018-03-18 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Prediction of Western Spruce Budworm Defoliation on Douglas-Fir Use of the appropriate model will allow prediction into the correct defoliation category 8 out of 10 times. 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.
Book Synopsis Evaluation of Multiple Regression Models for Prediction of Western Spruce Budworm Defoliation on Douglas-fir by : Allan T. Bullard
Download or read book Evaluation of Multiple Regression Models for Prediction of Western Spruce Budworm Defoliation on Douglas-fir written by Allan T. Bullard and published by . This book was released on 1981 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Multiple Regression Models for Prediction of Western Spruce Budworm Defoliation on Douglas-Fir (Classic Reprint) by : Allan T. Bullard
Download or read book Evaluation of Multiple Regression Models for Prediction of Western Spruce Budworm Defoliation on Douglas-Fir (Classic Reprint) written by Allan T. Bullard and published by Forgotten Books. This book was released on 2018-03-18 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Evaluation of Multiple Regression Models for Prediction of Western Spruce Budworm Defoliation on Douglas-Fir No changes were made in the methods previously described by Bullard and Young (1980) for collection of egg mass and defoliation estimation data. Form 1 was designed and distributed to the field for collection of physical data describing those clusters already contained in the data base and any new clusters being added. Variables included were slope, aspect, elevation, physiographic location, stand structure, species composition, and basal area. 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.
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.
Book Synopsis Sampling Populations of Western Spruce Budworm and Predicting Defoliation on Douglas-fir in Eastern Oregon by : Brian R. Wall
Download or read book Sampling Populations of Western Spruce Budworm and Predicting Defoliation on Douglas-fir in Eastern Oregon written by Brian R. Wall and published by . This book was released on 1972 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
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:
Book Synopsis Sampling Populations of Western Spruce Budworm and Predicting Defoliation on Douglas-fir in Eastern Oregon by : Brian R. Wall
Download or read book Sampling Populations of Western Spruce Budworm and Predicting Defoliation on Douglas-fir in Eastern Oregon written by Brian R. Wall and published by . This book was released on 1972 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
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:
Book Synopsis Sampling Populations of Western Spruce Budworm and Predicting Defoliation on Douglas-fir in Eastern Oregon by :
Download or read book Sampling Populations of Western Spruce Budworm and Predicting Defoliation on Douglas-fir in Eastern Oregon written by and published by . This book was released on 1973 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Book Synopsis Influence of Overstory Removal and Western Spruce Budworm Defoliation on Growth of Advance Conifer Regeneration in Montana by : Clinton E. Carlson
Download or read book Influence of Overstory Removal and Western Spruce Budworm Defoliation on Growth of Advance Conifer Regeneration in Montana written by Clinton E. Carlson and published by . This book was released on 1989 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
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.
