Download or read book Diseases of Pacific Coast Conifers Classic Reprint written by Robert F. Scharpf and published by Forgotten Books. This book was released on 2017-10-28 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Diseases of Pacific Coast Conifers This publication is a major revision of us. Department of Agriculture Handbook 521 first issued in 1978 and slightly revised and reissued in 1979. It has been updated to include new informa tion that will help identify many of the diseases of conifers growing along the Pacific Coast of western North America. The revisions have been made mainly to provide the latest information on diagnosis, nomenclature, and new diseases, and to expand the coverage of important diseases of the Pacific Northwest. The basic format of this handbook remains essentially the same as the original version. The expanded coverage, more and better illustrations, and new informa tion are designed to make this handbook a useful tool in diagnosing diseases of Pacific Coast conifers. 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 Diseases of Pacific Coast Conifers written by Robert V. Bega and published by . This book was released on 1978 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book DISEASES OF PACIFIC COAST CONIFERS written by ROBERT F. SCHARPF and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diseases of Pacific Coast Conifers written by F. M. Sandoval and published by . This book was released on 1979 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diseases of Pacific Coast Conifers written by John B. Carpenter and published by . This book was released on 1979 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diseases of Pacific Coast Conifers written by Robert V. Bega and published by . This book was released on 1978 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INSECT DAMAGE TO THE CONES AND SEEDS OF PACIFIC COAST CONIFERS CLASSIC REPRINT written by JOHN M. MILLER 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 Field Guide to the Common Diseases and Insect Pests of Oregon and Washington Conifers Classic Reprint written by Ellen Michaels Goheen and published by Forgotten Books. This book was released on 2018-09-12 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Field Guide to the Common Diseases and Insect Pests of Oregon and Washington Conifers Phytophagous plant - eating) insects and tree pathogens (organisms that cause diseases of trees) are important components of coniferous forests in Washington and Oregon. They are most commonly known for causing individual tree-level impacts, such as growth reduction, breakage, deformity, and mortality. However, insects and pathogens do have significant effects on forest structure, species composition, and succession at stand and landscape levels. Insects and pathogens can influence the development and quality of wildlife habitat, watershed values, visual character, nutrient cycling, commodity production, and human safety. This field guide has been prepared to provide forest resource managers with a basic tool for quick field identification of diseases and insects that are commonly found affecting conifers in the Pacific Northwest. It does not attempt to describe or list all insects and pathogens found affecting coniferous trees, only those most commonly encountered. This field guide should be used in combination with other resources such as the books Western Forest Insects (furniss and Carolin 1977) and Diseases of Pacific Coast Conifers (scharpf Written descriptions, identification keys, comparative tables, photographs, and line drawings are used to illustrate and emphasize key characteristics that will help the user identify the common insects and pathogens during field reconnaissance. 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 Diseases of Coniferous Trees Classic Reprint written by James Robert Weir and published by Forgotten Books. This book was released on 2018-02-10 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Diseases of Coniferous Trees Polyporus schweinitzii Fr. Ranks next in importance to Trametes pini in the natural forests. It commonly attacks the heartr wood of the base or butts of the trunk and of the roots of coniferous trees, especially the Douglas firs. The rot rarely extends farther up the trunk than the first saw log. The fungus spreads from diseas ed trees to healthy ones underground, where larger roots come in con tact with each other. Where this takes place it is common to find groups of trees affected with the fungus, and sometimes an entire group of Douglas firs are killed outright, In.most instances, how ever, the trees weakened by the fungus are either uprooted or broken off by the winds before death. 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 Some Diseases of New England Conifers written by Hermann Von Schrenk and published by Forgotten Books. This book was released on 2017-11-24 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Some Diseases of New England Conifers: A Preliminary Report Very little attention has been paid to the study of diseases of forest trees in the United States up to this time, and the reasons are Obvious enough. Up to within a few years the supply Of standing timber of all kinds has been so large that a few diseased trees, more or less, scat tered over wide areas were Of little account. The lumberman cut down the sound trees and paid no attention to such as he recognized to be of inferior value. The situation has changed within the last decades, and a wide-felt demand has arisen among all classes of people for a more economical and rational treatment of the existing forest lands, and for reestablishing forests on denuded areas. In the primeval forest the trees diseased because of fungous or insect attack were ignored. They were few in comparison with sound trees, and the price of a single tree was very low. At the present time, with a marked appreciation in the value Of timber, the agencies which injure trees for timber are of more immediate interest to the owners of woodlands. At this time the extent to which insects and fungi destroy trees can only be guessed at. Their work of destruction goes on silently here and there in the forest, and does not attract the attention of the casual Observer as do careless lumbering or forest fires. If the dead and dying trees in a forest could be collected, they would represent a con siderable percentage of the total forest. Forest fires are already not so common as they used to be, and the lumberman of today is beginning to understand that more can be realized from a given forest tract by rational treatment than by indiscriminate cutting. Insects and fungi, and other harmful agencies Of less importance, are being studied with the aim of arriving at a more complete understanding Of their manner of working. 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 Elytroderma Disease of Ponderosa Pine in the Pacific Northwest Classic Reprint written by Thomas W. Childs and published by Forgotten Books. This book was released on 2018-03-30 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Elytroderma Disease of Ponderosa Pine in the Pacific Northwest Weir's (19162) observations in 1913-15 were evidently made during the waning stages of an extensive outbreak that had started many years before. Damage from this or possibly a later and less extensive outbreak continued for several years in parts of southern Idaho. In Oregon and Washington during the 1920's and 1930's, large brooms (presumably relics of the outbreak described by Weir) were fairly common in some localities, but no damage was observed even where Weir had recorded the disease as destructive. The current outbreak first attracted attention in 1945 in central Oregon. Dur ing the next few years, the disease was found to be occasional to common in stands of all ages throughout the region. Evidence to be presented later indicates that a heavy wave of infection occurred in the late l93o's or very early l94o's. Some subsequent infection by spores has occurred from time to time. 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 Root Diseases in Oregon and Washington Conifers written by and published by . This book was released on 1986 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Insect Damage to the Cones and Seeds of Pacific Coast Conifers written by John Martin Miller and published by . This book was released on 1914 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Field Guide to the Common Diseases and Insect Pests of Oregon and Washington Conifers written by Ellen Michaels Goheen and published by Forest Service. This book was released on 2006 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Text Book of the Diseases of Trees Classic Reprint written by Robert Hartig and published by Forgotten Books. This book was released on 2018-01-18 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Text-Book of the Diseases of Trees Some fifty years ago a number of able investigators, of whom only Saxesen, Th. Hartig, and Ratzeburg need be named here, applied themselves to the study of insects. The life-history of forest insects, their harmfulness or usefulness, soon became the favourite study of many practical foresters, and in a few decades the joint efforts of numerous workers were rewarded by the elevation of Forest Entomology to the position of a much appreciated subject of scientific instruction, which has become the common property of all educated foresters. The case was otherwise with those plant-diseases which cannot be ascribed to the injuries of animals. Their investi gation was delayed until quite recently; for it was only after botanical science, by the aid of its chief instrument, the microscope, had obtained a clear insight into the normal strue ture and vital phenomena of plants, and especially after the study of fungi had been prosecuted in the last few decades by a series of distinguished investigators, that the examination of the phenomena of disease in the life of plants could be undertaken with a prospect of success. 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 Cone and Seed Diseases of North American Conifers written by North American Forestry Commission and published by North American Forestry Commission. This book was released on 1987 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Of information on the biology, description, distribution, detection, and management of cone and seed diseases in Canada, Mexico and the United States. Disease distribution maps are included for most major hosts and wherepossible, those diseases that occur or are likely to occur in seed orchardswhich will supply most of the future seed needs are pointed out. Eachsection gives the life history, symptoms, signs, damage, and distribution onvarious hosts of the major cone and seed diseases, with distribution mapsincluded for both hosts and diseases. A table of cone and seed diseases ofminor importance gives information on diseases whose importance is not yetwell documented. A glossary is also included, as well as lists of diseasehosts by common and scientific names.
Download or read book Field Guide to Diseases and Insect Pests of Northern and Central Rocky Mountain Conifers written by Susan K. Hagle and published by . This book was released on 2003 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Field guide contains descriptions and color photographs of diseases, insect pests, animal and abiotic damages common on forest conifers in the northern and central Rocky Mountains. Diagnostic keys, comparative tables, line drawings, and indices by host and subject aid in the identification of damaging agents. Book is organized in color coded sections according to the part of the tree affected. General references and a glossary of technical terms are provided. 320 illustrations, 11 tables.
