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Excerpt from The Fungal Diseases of the Common Larch This book arose from an investigation which Sir William Schlich asked me to make into the larch canker, a disease on which many articles and papers have been published, though no full and connected account of it has ever been written in English. While studying the canker in the field, I very frequently encountered certain other diseases on the larch, especially the heart-rot and the honey fungus, and it seemed better to include these in the scope of the investigation. For the sake of completeness, all the known diseases on the common larch have also been described, and it is hoped that a book of more general usefulness has been thereby produced. Certain fungi, such as Lophodermium laricis and Botrytis cinerea, which have occasionally been reported as parasitic on the larch, have been omitted, as no reliable evidence of their causing disease has been forthcoming. The arrangement of the diseases bears no relation to the systematic position of the fungi. They are mostly given in the order in which they were studied, which approximates closely to the order of their importance. The work was made possible by a grant from the Development Commissioners, received through the Board of Agriculture and Fisheries, and latterly through the Interim Forest Authority. Especial acknowledgement is due to these departments, particularly to the last named, which has assisted me in a variety of ways. I also desire to thank Sir William Schlich for constant help and encouragement, and Messrs. A. W. Borthwick and Malcolm Wilson for permission to reproduce Fig.72 from the Transactions of the Royal Scottish Arboricultural Society. 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.
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Urban trees on the prairies are essential to our changing landscape environment. I have helped thousands of people with their tree problems over the past 43 years. Tree diseases and how to deal with them continue to plague a very large number of people. "Where can we get more information about these tree problems?" is a question I am constantly being asked. This book will help you to narrow the search for the problems plaguing your trees by going through the images and accompanied text. As well, there are also helpful detailed instructions on how to take care of the nutritional requirements of your trees. Keeping a tree healthy can reduce its susceptibility to diseases much as good nutrition does with people and animals. You can always reach me on line at www.treeexperts.mb.ca if you need any further help. Enjoy your trees!
Diseases of Trees and Shrubs is a comprehensive pictorial survey of the diseases of, as well as the environmental damage to, forest and shade trees and woody ornamental plants in the United States and Canada. An authoritative reference, it is also a reliable and handy diagnostic tool that will simplify the identification of specific plant diseases by focusing on signs and symptoms that can be seen with the unaided eye or with a hand lens. This long-needed book gives readers complete, up-to-date information in an easily understood and convenient way. Each of the 247 color plates faces a page of explanatory text covering the biology and ecology (including host and geographic ranges) of the disease-causing agents (pathogens), a list of key references (there are more than 2,250), and, in some cases, black-and-white illustrations of pathogens. Selected information about biological and cultural control is provided. Scientific terms other than Latin names of pathogens are used only when necessary, and a glossary of terms and a comprehensive index are included. The color plates contain more than 1,700 illustrations of the diseases and injuries that some 350 biological agents and environmental factors cause to more than 250 species of plants. The book also serves as a guide to hundreds of other diseases related to those shown. The authors have used three levels of organization for this book. At the first level, diseases caused by biological agents are separated from those caused by environmental stimuli. At the second level, most diseases are grouped according to the plant part affected: leaves, twigs, limbs, roots, trunks, or the entire plant. At the third level, diseases are presented according to the taxonomic relationships among the pathogens. For this major project, the authors examined and photographed diseases and environmental damage in the field, visiting more than 50 states and Canadian provinces. Their book reflects the most important developments in fungal biology and taxonomy, plant bacteriology, virology, and environmentally induced stress in plants. It summarizes information about newly discovered diseases and provides up-to-date accounts of olds ones. Diseases of Trees and Shrubs can be profitable reading for anyone whose technical training does not extend beyond general biology, yet will also be informative to advanced students and plant pathologists. It will be welcomed by agricultural and horticultural advisers, plant inspectors, arborists, nursery professionals, landscapers, foresters, and urban planners. Wayne A. Sinclair is a Professor of Plant Pathology, Howard H. Lyon is Biological Photographer (retired), Department of Plant Pathology, and Warren T. Johnson is Professor of Entomology, all at Cornell University.