Author: Valentine M. Carolin
Publisher:
ISBN:
Category : Aerial photography in forestry
Languages : en
Pages : 44
Book Description
Sampling Populations of Western Spruce Budworm and Predicting Defoliation on Douglas-fir in Eastern Oregon
Author: Valentine M. Carolin
Publisher:
ISBN:
Category : Aerial photography in forestry
Languages : en
Pages : 44
Book Description
Publisher:
ISBN:
Category : Aerial photography in forestry
Languages : en
Pages : 44
Book Description
Sampling Populations of Western Spruce Budworm and Predicting Defoliation on Douglas-Fir in Eastern Oregon (Classic Reprint)
Author: Valentine M. Carolin
Publisher: Forgotten Books
ISBN: 9781391988306
Category : Business & Economics
Languages : en
Pages : 52
Book Description
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.
Publisher: Forgotten Books
ISBN: 9781391988306
Category : Business & Economics
Languages : en
Pages : 52
Book Description
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.
Sampling Populations of Western Spruce Budworm and Predicting Defoliation on Douglas-fir in Eastern Oregon
Sampling Populations of Western Spruce Budworm and Predicting Defoliation on Douglas-fir in Eastern Oregon
Author: Brian R. Wall
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 30
Book Description
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 30
Book Description
Sampling Populations of Western Spruce Budworm and Predicting Defoliation on Douglas-fir in Eastern Oregon
Author: Brian R. Wall
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 15
Book Description
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 15
Book Description
Comparison of Western Spruce Budworm Populations and Damage on Grand Fir and Douglas-fir Trees
Author: Valentine M. Carolin
Publisher:
ISBN:
Category : Abies grandis
Languages : en
Pages : 24
Book Description
Publisher:
ISBN:
Category : Abies grandis
Languages : en
Pages : 24
Book Description
Monitoring Larval Populations of the Douglas-fir Tussock Moth and the Western Spruce Budworm on Permanent Plots
Author: Richard R. Mason
Publisher:
ISBN:
Category : Douglas fir tussock moth
Languages : en
Pages : 32
Book Description
Publisher:
ISBN:
Category : Douglas fir tussock moth
Languages : en
Pages : 32
Book Description
Differential Defoliation of Neighboring Douglas-fir Trees by Western Spruce Budworm
Author: Geral I. McDonald
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 12
Book Description
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 12
Book Description
Research Note PNW
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 526
Book Description
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 526
Book Description
Distribution of Western Spruce Budworm Egg Masses on White Fir and Douglas-fir
Author: J. M. Schmid
Publisher:
ISBN:
Category : Defoliation
Languages : en
Pages : 12
Book Description
Publisher:
ISBN:
Category : Defoliation
Languages : en
Pages : 12
Book Description