Download or read book Dutch Elm Disease written by and published by . This book was released on 1965 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dutch Elm Disease written by International Union of Forestry Research Organizations and published by . This book was released on 1975 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dutchelm Disease Proceedings of Iufro Conference Held at Minneapolis St Paul Usa September 1973 written by North Central Forest Experiment Station (Saint Paul, Minn.) and published by . This book was released on 1975 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dutch Elm Disease written by Union internationale des instituts de recherches forestières and published by . This book was released on 1975 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Elm written by R. H. Richens and published by Cambridge University Press. This book was released on 1983-10-20 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Elm, one of the three principal landscape trees of England, differs from the others in its complex variability and its intricate relationship with human settlement. Originally published in 1983, the present book covers all its aspects: its history, its use and distribution by man from prehistoric times onwards, its vernacular names, the numerous organisms associated exclusively with it and its place in English literature and the visual arts. The book will be of value to anyone with an interest in the English landscape. It is of particular relevance to botanists, foresters, archaeologists, historical linguists, zoologists, students of English literature and the fine arts, and workers in the areas of conservation and town and country planning.
Download or read book Durable Resistance in Crops written by F. Lamberti and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant diseases and pests are a major constraint to agricultural production despite the various measures used to control them. Chemical control, although often e~~ective, may pose environmental hazards and is relatively expensive, especially in developing countries where it may be completely uneconomic. Control through genetically mediated resistance to diseases and pests, is both cheap and environmentally sa~e and at present most diseases and pests o~ staple ~ood crops are controlled through some form of resistance. One of the basic problems in the use of resistance is its ~re quent lack of durability; very often a type of resistance is used that 'breaks down' after a certain period. The temporary nature of this resistance, due to the development of new strains of pest or pathogen able to overcome it, has seriously hindered the improvement o~ the yield potential of many crops as a continuing effort is needed to replace old cultivars who resistance has failed, with new ones. Following Vanderplank's now classical publications (1963, 1968) which differentiated horizontal and vertical resistance, studies on several host-parasite systems have shown that di~ferent types of resistance can be distinguished genetically and epidemiologically, and on the ability o~ the pests or pathogens to adapt to them. A knowledge of how resistance operates at the population level has also opened up possibilities of 'managing' relatively simple resistance types in such a way that a stable host-pathogen system can be pro duced with a minimum of crop loss.
Download or read book Bibliographic Guide to Government Publications U S written by New York Public Library. Research Libraries and published by . This book was released on 1976 with total page 874 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Meeting of the Canadian Tree Improvement Association written by Canadian Tree Improvement Association and published by . This book was released on 1978 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Meeting of the Canadian Tree Improvement Association Part 2 written by Canadian Tree Improvement Association and published by . This book was released on 1973 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecol written by Environmental Conservation Library of Minnesota and published by . This book was released on 1976 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliographic Guide to Conference Publications written by New York Public Library. Research Libraries and published by . This book was released on 1976 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1975- include publications cataloged by the Research Libraries of the New York Public Library with additional entries from the Library of Congress MARC tapes.
Download or read book Proceedings of the First International Symposium on Acid Precipitation and the Forest Ecosystem May 12 15 1975 Columbus Ohio written by and published by . This book was released on 1976 with total page 1182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Agricultural Library Catalog written by National Agricultural Library (U.S.) and published by . This book was released on 1976 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1982 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Mountain Pine Beetle written by Pacific Forestry Centre and published by . This book was released on 2006 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book presents a synthesis of published information on mountain pine beetle (Dendroctonus ponderosae Hopkins [Coleoptera: Scolytidae]) biology and management with an emphasis on lodgepole pine (Pinus contorta Dougl. ex Loud. var. latifolia Engelm.) forests of western Canada. Intended as a reference for researchers as well as forest managers, the book covers three main subject areas: mountain pine beetle biology, management, and socioeconomic concerns. The chapters on biology cover taxonomy, life history and habits, distribution, insect-host tree interactions, development and survival, epidemiology, and outbreak history. The management section covers management strategy, survey and detection, proactive and preventive management, and decision support tools. The chapters on socioeconomic aspects include an economic examination of management programs and the utilization of post-beetle salvage timber in solid wood, panelboard, pulp and paper products."--Publisher's description.
Download or read book Urban and Community Forestry in the Northeast written by John E. Kuser and published by Springer Science & Business Media. This book was released on 2006-11-14 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a textbook for Urban/Community Forestry courses and a handbook for Shade Tree Commissions, tree wardens, State and National Forestry Services, and professional societies. It is the most complete text in this field because it addresses both culture and management, and the chapters have been written by experts who are active practitioners. The book provides observations and examples relevant to every urban center in the U.S. and elsewhere.
Download or read book Southern Forest Science written by and published by . This book was released on 2004 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Southern forests provide innumerable benefits. Forest scientists, managers, owners, and users have in common the desire to improve the condition of these forests and the ecosystems they support. A first step is to understand the contributions science has made and continues to make to the care and management of forests. This book represents a celebration of past accomplishments, summarizes the current state of knowledge, and creates a vision for the future of southern forestry research and management. Chapters are organized into seven sections: "Looking Back," "Productivity," "Forest Health," "Water and Soils," "Socioeconomic," "Biodiversity," and "Climate Change." Each section is preceded by a brief introductory chapter. Authors were encouraged to focus on the most important aspects of their topics; citations are included to guide readers to further information."
