Natural Regeneration 10 Years After A Douglas Fir Tussock Moth Outbreak In Northeastern Oregon
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Natural Regeneration 10 Years After A Douglas Fir Tussock Moth Outbreak In Northeastern Oregon
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Author : Boyd E. Wickman
language : en
Publisher:
Release Date : 1986
Natural Regeneration 10 Years After A Douglas Fir Tussock Moth Outbreak In Northeastern Oregon written by Boyd E. Wickman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Douglas fir categories.
Natural Regeneration 10 Years After A Douglas Fir Tussock Moth Outbreak In Northeastern Oregon Classic Reprint
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Author : B. E. Wickman
language : en
Publisher: Forgotten Books
Release Date : 2018-08-19
Natural Regeneration 10 Years After A Douglas Fir Tussock Moth Outbreak In Northeastern Oregon Classic Reprint written by B. E. Wickman and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-08-19 with categories.
Excerpt from Natural Regeneration 10 Years After a Douglas-Fir Tussock Moth Outbreak in Northeastern Oregon Forest managers feared that natural regeneration would not be adequate to reforest the larger patch kills of grand fir and Douglas-fir and consequently planted many of the areas after clearcut and partial cut salvage logging (seidel and Head After the outbreak there were also questions about adequacy, timing, and species of natural regeneration and on environmental factors responsible for success or failure of regeneration establishment. 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.
Natural Regeneration 10 Years After A Douglas Fir Tussock Moth Outbreak In Northeastern Oregon
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Author : Boyd E. Wickman
language : en
Publisher:
Release Date : 1986
Natural Regeneration 10 Years After A Douglas Fir Tussock Moth Outbreak In Northeastern Oregon written by Boyd E. Wickman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with categories.
Research Paper Pnw
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Author :
language : en
Publisher:
Release Date : 1978
Research Paper Pnw written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Forests and forestry categories.
Douglas Fir Tussock Moth
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Author :
language : en
Publisher:
Release Date : 2000
Douglas Fir Tussock Moth written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.
Monthly Catalog Of United States Government Publications
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Author :
language : en
Publisher:
Release Date : 1987
Monthly Catalog Of United States Government Publications written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Government publications categories.
Monthly Catalogue United States Public Documents
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Author :
language : en
Publisher:
Release Date : 1987
Monthly Catalogue United States Public Documents written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Government publications categories.
Impact Of The Douglas Fir Tussock Moth On Forest Recreation In The Blue Mountains
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Author : Kent B. Downing
language : en
Publisher:
Release Date : 1977
Impact Of The Douglas Fir Tussock Moth On Forest Recreation In The Blue Mountains written by Kent B. Downing and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Blue Mountains (Or. and Wash.). categories.
Alabama S Forest Products Industry
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Author :
language : en
Publisher:
Release Date : 1986
Alabama S Forest Products Industry written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Forest products industry categories.
Major Outbreaks Of The Douglas Fir Tussock Moth In Oregon And California
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Author : Boyd E. Wickman
language : en
Publisher:
Release Date : 1973
Major Outbreaks Of The Douglas Fir Tussock Moth In Oregon And California written by Boyd E. Wickman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Douglas fir categories.
Case histories of five tussock moth outbreaks that occurred in California and Oregon between 1935 and 1965 are discussed. Information is given on the size and duration of the outbreaks, the presence of natural control agents and the damage caused. Most of the outbreaks were eventually treated with DDT. However, enough information was available from untreated portions to show the probable trend of natural events in the absence of direct control. Repeated patterns observed in each of the outbreaks enabled certain generalizations to be made about natural population behavior and tree impact. All infestations followed a 3-year cycle with inconspicuous to minimal defoliation the first year, severe foliage loss the second year, and ultimate collapse of the population by the end of the third year. The most severe tree damage occurred in the second year. Additional loss of foliage before population collapse in the third year was usually of minor importance in terms of total impact. Although other natural factors were involved, a virus disease appeared to be the principal cause of insect mortality during collapse.
