Documentation of the Douglas-fir Tussock Moth Outbreak-population Model PDF Download
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Author: J. J. Colbert
Publisher:
ISBN:
Category : Douglas-fir tussock moth
Languages : en
Pages : 92
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Book Description
Author: J. J. Colbert
Publisher:
ISBN:
Category : Douglas-fir tussock moth
Languages : en
Pages : 92
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Book Description
Author: J. J. Colbert
Publisher:
ISBN:
Category : Douglas fir tussock moth
Languages : en
Pages : 3
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Book Description
Author:
Publisher:
ISBN:
Category : Douglas fir tussock moth
Languages : en
Pages : 20
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Book Description
Author: Wscott Overton and Curtis J. J. Colbert
Publisher: Palala Press
ISBN: 9781378961872
Category : History
Languages : en
Pages : 88
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Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: Robert A. Monserud
Publisher:
ISBN:
Category : Douglas fir tussock moth
Languages : en
Pages : 56
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Book Description
Author: J. J. Colbert
Publisher:
ISBN:
Category : Douglas fir tussock moth
Languages : en
Pages : 0
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Author: Boyd E. Wickman
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 24
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Book Description
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.
Author:
Publisher:
ISBN:
Category : Douglas fir tussock moth
Languages : en
Pages : 52
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Book Description
Author: Expanded Douglas-fir Tussock Moth Research and Development Program
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 28
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Book Description
Author:
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 20
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