Parasite Records for the Douglas-fir Tussock Moth

Parasite Records for the Douglas-fir Tussock Moth PDF Author: Torolf R. Torgersen
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 44

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Parasite Records for the Douglas-fir Tussock Moth

Parasite Records for the Douglas-fir Tussock Moth PDF Author: Torolf R. Torgersen
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 44

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The Douglas-fir Tussock Moth

The Douglas-fir Tussock Moth PDF Author: United States. Forest Service
Publisher:
ISBN:
Category : Douglas-fir tussock moth
Languages : en
Pages : 360

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Publications of the Pacific Northwest Forest and Range Experiment Station

Publications of the Pacific Northwest Forest and Range Experiment Station PDF Author: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 28

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Selected parasites and hyperparasites of the gypsy moth, with keys to adults and immatures

Selected parasites and hyperparasites of the gypsy moth, with keys to adults and immatures PDF Author: Edward E. Simons
Publisher:
ISBN:
Category : Gypsy moth
Languages : en
Pages : 60

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Douglas-fir Tussock Moth

Douglas-fir Tussock Moth PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 252

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Annotated List of Publications of the Pacific Northwest Forest and Range Experiment Station

Annotated List of Publications of the Pacific Northwest Forest and Range Experiment Station PDF Author: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 24

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General Technical Report PNW.

General Technical Report PNW. PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 72

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Insect Outbreaks

Insect Outbreaks PDF Author: Bozzano G Luisa
Publisher: Elsevier
ISBN: 0323138748
Category : Science
Languages : en
Pages : 593

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Book Description
FROM THE PREFACE: The abundance of insects can change dramatically from generation to generation; these generational changes may occur within a growing season or over a period of years. Such extraordinary density changes or "outbreaks" may be abrupt and ostensibly random, or population peaks may occur in a more or less cyclic fashion....The goal of this book is to update and advance current thinking on the phenomenon of insect outbreaks. The contributors have reviewed relevant literature in order to generate a synthesis providing new concepts and important alternatives for future research. More importantly, they have presented new ideas or syntheses that will stimulate advances in thinking and experimentation.

Technical Bulletin

Technical Bulletin PDF Author:
Publisher:
ISBN:
Category : Agricultural extension work
Languages : en
Pages : 788

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The History, Biology, Damage, and Control of the Gypsy Moth, Porthetria Dispar (L.)

The History, Biology, Damage, and Control of the Gypsy Moth, Porthetria Dispar (L.) PDF Author: Michael H. Gerardi
Publisher: Fairleigh Dickinson Univ Press
ISBN: 9780838620236
Category : Science
Languages : en
Pages : 252

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Book Description
A comprehensive study of the life stages, biology, ecology, behavior, dynamics, economic importance, and success and failure of large- and small- scale control programs of the most destructive forest pest in the northern United States today.