Download or read book The California Tussock Moth Classic Reprint written by W. H. Volck and published by Forgotten Books. This book was released on 2017-12-14 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The California Tussock-Moth The tussock-moth caterpillar affecting apple trees in the Pajaro Valley was-brought prominently to the attention of the Experiment Station during the first. Season of the codling-moth investigation in the spring and summer Of 1903, and considerable attention was given to it, including certain experiments by Mr. Clarke, who was then in imme diate charge of the investigation in this valley. 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.
Download or read book Decay in White Fir Top Killed by Douglas Fir Tussock Moth Classic Reprint written by Boyd E. Wickman and published by Forgotten Books. This book was released on 2018-10-10 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Decay in White Fir Top-Killed by Douglas-Fir Tussock Moth A 1970 timber sale on the Mammoth Lakes District, which included part of the 1937 infestation and study area, offered an opportunity to determine if heart rots were a significant cause of defect in white fir trees 33 years after top-killing by the Douglas-fir tussock moth. Many of the pole-sized trees top-killed as a result of the severe defoliation are now of merchant able size and were included in the timber sale. 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.
Download or read book The California tussock moth written by W. H. Volck and published by . This book was released on 1906 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Interactive Program for the Douglas Fir Tussock Moth Stand Outbreak Model Classic Reprint written by John Wong and published by Forgotten Books. This book was released on 2018-01-09 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from An Interactive Program for the Douglas-Fir Tussock Moth Stand Outbreak Model Number of days stress operates is the number of days on old foliage.with a phase 1 start, with insect densities ranging from 1-20 larvae/1000 square inch of foliage, and with nominal foliage conditions that best approximate the situations at hand. After this simulation is made, the information on the number of days on old foliage can be retrieved as discussed above. 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.
Download or read book SEQUENTIAL SAMPLING OF DOUGLAS FIR TUSSOCK MOTH POPULATIONS CLASSIC REPRINT written by RICHARD R. MASON and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Douglas Fir Tussock Moth written by Robert W. Campbell and published by Forgotten Books. This book was released on 2017-11-06 with total page 894 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Douglas-Fir Tussock Moth: An Annotated Bibliography By intent, at least, this bibliography is complete for the Douglas - fir tussock moth through December 31, 1977. A copy of virtually every document in the bibliography is on file at the Forestry Sciences Laboratory, 3200 Jefferson Way, Corvallis, Oregon. Investigators wishing to obtain copies of specific documents are urged to write the author(s) directly. Usually, specific authors' current addresses can be obtained by writing the senior author of. 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.
Download or read book Identification of Parasites of the Douglas Fir Tussock Moth Based on Adults Cocoons and Puparia Classic Reprint written by Torolf R. Torgersen and published by Forgotten Books. This book was released on 2018-03-17 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Identification of Parasites of the Douglas-Fir Tussock Moth, Based on Adults, Cocoons, and Puparia The author thanks D. L. Dahlsten, D. T. Jennings, L. Livingston, K. Volker, and J. D. Ward for the loan of specimens; and E. Obert, Photographic Services, Oregon State University, Corvallis, for photographic work. The research reported here was financed in whole or part by the usda Expanded Douglas-fir Tussock Moth Research and Development Program. 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.
Download or read book The White Marked Tussock Moth and Its Control on Shade Trees and Orchard Trees Classic Reprint written by James Malcolm Swaine and published by Forgotten Books. This book was released on 2019-02-08 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The White-Marked Tussock Moth and Its Control on Shade Trees and Orchard Trees The winter is passed in the egg-stage in the white conspicuous egg-masses. Attached usually to the cocoons. Normally the masses are deposited upon the trunk and the under side of the larger branc es, but in seasons of great abundance they occur in considerable numbers in the upper parts of the trees and nearby objects. Such as fences and buildings. 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.
Download or read book Rearing the Western Tussock Moth on Artificial Diet with Application to Related Species Classic Reprint written by Linda J. Peterson and published by Forgotten Books. This book was released on 2018-03-17 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Rearing the Western Tussock Moth on Artificial Diet With Application to Related Species This paper describes an artificial diet and a rearing procedure for the western tussock moth, Orgyia cana Edwards. 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.
Download or read book Forecasting Outbreaks of the Douglas Fir Tussock Moth From Lower Crown Cocoon Samples Classic Reprint written by R. R. Mason and published by Forgotten Books. This book was released on 2018-01-13 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Forecasting Outbreaks of the Douglas-Fir Tussock Moth From Lower Crown Cocoon Samples A sample plot was 50 randomly selected host trees having lower branches within reach from the ground with the trees distributed over 2 to 5 acres to ha). Plots were selected for the study and sampled for cocoons only if they were expected to have measurable larval populations the next summer. Cocoons were sampled in the fall after moth emergence and oviposition. First and second instars were sampled on the same plots the following June. Densities were estimated in each plot by the frequency of occurrence of tussock moth (that is, cocoons in the fall or larvae in the summer) on the lower branches of 50 host trees (mason 1977, 1979, With this method for sampling cocoons, the underside of three 18-inch (45-cm) branch tips in the lower crown was visually examined on each tree for the presence or absence of cocoons. The proportion, -p, of infested sample trees on the plot was then converted to density of cocoons/1000 square inches m2) of branch area, X, by the theoretical distribution of the Poisson series (mason 1977) where. 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.
Download or read book Major Outbreaks of the Douglas fir Tussock Moth in Oregon and California written by Boyd E. Wickman and published by . This book was released on 1973 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Impact of the Douglas Fir Tussock Moth on Forest Recreation in the Blue Mountains Classic Reprint written by Kent B. Downing and published by Forgotten Books. This book was released on 2018-01-08 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Impact of the Douglas-Fir Tussock Moth on Forest Recreation in the Blue Mountains A survey of recreationists, resort owners, packer-guides, motel operators, and employees of natural resource agencies revealed little evidence that a recent outbreak of Douglas-fir tussock moth had significant or widespread influence on recreation in northeastern Oregon. 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.
Download or read book Douglas Fir Tussock Moth Egg Hatch and Larval Development in Relation to Phenology of Grand Fir and Douglas Fir in Northeastern Oregon Classic Reprint written by Boyd E. Wickman and published by Forgotten Books. This book was released on 2017-10-27 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Douglas Fir Tussock Moth Egg Hatch and Larval Development in Relation to Phenology of Grand Fir and Douglas-Fir in Northeastern Oregon Bud burst, shoot elongation, egg hatch, and larval development were studied on six areas in a 1973 infestation in the Blue Moun tains. Bud burst and egg hatch were found to be closely related to accumulated degree-days, and peak egg hatch occurred after all buds had burst and shoots were 50 percent or more elongated. Larval development then closely followed shoot elongation. This synchrony of host and insect phenology provides an easily observed field event for monitoring Douglas fir tussock moth development. 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.
Download or read book Western Tussock Moth written by Malcolm M. Furniss and published by . This book was released on 1971 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Detecting Suboutbreak Populations of the Douglas Fir Tussock Moth by Sequential Sampling of Early Larvae in the Lower Tree Crown Classic Reprint written by Richard R. Mason and published by Forgotten Books. This book was released on 2018-03-17 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Detecting Suboutbreak Populations of the Douglas-Fir Tussock Moth by Sequential Sampling of Early Larvae in the Lower Tree Crown Construction of the sequential plan requires selection of risk levels for making incorrect decisions. These are usually referred to as alpha (o), the risk of rejecting a hypothesis when it is true, and beta the risk of accepting a hypothesis when it is false. In this plan both allow able risks were set at which means the maximum chance of mislabeling a population is l in 20. Two parallel decision lines are used for testing the formulated hypoth eses. These are calculated according to the equation for a straight line. 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.
Download or read book Biological Evaluation the Douglas fir Tussock Moth in California 1971 written by Bruce H. Roettgering and published by . This book was released on 1971 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Douglas fir Tussock Moth written by United States. Forest Service and published by . This book was released on 1978 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
