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Revision Of The North American Species Of The Genus Lithocolletis Hubner Classic Reprint
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Book Synopsis Revision of the North American Species of the Genus Lithocolletis Hübner (Classic Reprint) by : Annette Frances Braun
Download or read book Revision of the North American Species of the Genus Lithocolletis Hübner (Classic Reprint) written by Annette Frances Braun and published by Forgotten Books. This book was released on 2016-09-13 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Revision of the North American Species of the Genus Lithocolletis Hubner To Dr. Edward Meyrick of Marlborough, England, to whose consideration the proposed division of the genus was submitted, I am indebted for the expression of his opinion on the establishment of the subgenera, ' and also for the comparison of several American species with closely related European ones. Through the kindness of Dr. Henry Skinner of the Academy of Natural Sciences of Philadelphia, and Prof. Samuel Henshaw of the Museum of Comparative Zoology at Cambridge, Mass, I was given every opportunity to examine and sketch the many valuable types of species of this genus. Dr. James Fletcher has sent me a number of Canadian species for examination, for which privilege I return thanks. 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."
Book Synopsis Revision of the North American Species of the Genus Juncus (Classic Reprint) by : George Engelmann
Download or read book Revision of the North American Species of the Genus Juncus (Classic Reprint) written by George Engelmann and published by Forgotten Books. This book was released on 2016-10-19 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Revision of the North American Species of the Genus Juncus It was thought best to add a second table, giving the extremes of every month and every year in those seven years, as the extremes are of more practical importance for the boatmen, as well as the inhabitants of the banks, than the means. The table shows that from September to February the river has never been higher than 17 feet, from March to July never lower than 6 feet, and in April, May, and June never lower than 8 feet above low water mark. The lowest stage, zero, was observed on December 21, 1863, and the highest, feet, on July 27, 1844. 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.
Book Synopsis Pesticide Resistance in Arthropods by : Richard Roush
Download or read book Pesticide Resistance in Arthropods written by Richard Roush and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bruce E. Tabashnik and Richard T. Roush Pesticide resistance is an increasingly urgent worldwide problem. Resistance to one or more pesticides has been documented in more than 440 species of insects and mites. Resistance in vectors of human dise8se, particularly malaria-transmit ting mosquitoes, is a serious threat to public health in many nations. Agricultural productivity is jeopardized because of widespread resistance in crop and livestock pests. Serious resistance problems are also evident in pests of the urban environ ment, most notably cockroaches. Better understanding of pesticide resistance is needed to devise techniques for managing resistance (Le. , slowing, preventing, or reversing development of resistance in pests and promoting it in beneficial natural enemies). At the same time, resistance is a dramatic example of evolution. Knowledge of resistance can thus provide fundamental insights into evolution, genetics, physiology, and ecology. Resistance management can help to reduce the harmful effects of pesticides by decreasing rates of pesticide use and prolonging the efficacy of environmentally safe pesticides. In response to resistance problems, the concentration or frequency of pesticide applications is often increased. Effective resistance management would reduce this type of increased pesticide use. Improved monitoring of resis tance would also decrease the number of ineffective pesticide applications that are made when a resistance problem exists but has not been diagnosed. Resistance often leads to replacement of one pesticide with another that is more expensive and less compatible with alternative controls.
Book Synopsis General Concepts in Integrated Pest and Disease Management by : A. Ciancio
Download or read book General Concepts in Integrated Pest and Disease Management written by A. Ciancio and published by Springer Science & Business Media. This book was released on 2007-07-20 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: This, the first volume of the ‘Integrated Management of Plant Pests and Diseases’ book series, presents general concepts on integrated pest and disease management. Section one includes chapters on infection models, resurgence and replacement, plant disease epidemiology and effects of climate change in tropical environments. The second section includes remote sensing and information technology. Finally, the third section covers molecular aspects of the subject.
Book Synopsis Insect-Plant Biology by : Louis M. Schoonhoven
Download or read book Insect-Plant Biology written by Louis M. Schoonhoven and published by Oxford University Press. This book was released on 2005-12 with total page 441 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Half of all insect species are dependent on living plant tissues, consuming about 10% of plant annual production in natural habitats and an even greater percentage in agricultural systems, despite sophisticated control measures. Plants are generally remarkably well-protected against insect attack, with the result that most insects are highly specialized feeders. The mechanisms underlying plant resistance to invading herbivores on the one side, and insect food specialization on the other, are the main subjects of this book. For insects these include food-plant selection and the complex sensory processes involved, with their implications for learning and nutritional physiology, as well as the endocrinological aspects of life cycle synchronization with host plant phenology. In the case of plants exposed to insect herbivores, they include the activation of defence systems in order to minimize damage, as well as the emission of chemical signals that may attract natural enemies of the invading herbivores and may be exploited by neighbouring plants that mount defences as well." "Insect-Plant Biology discusses the operation of these mechanisms at the molecular and organismal levels, in the context of both ecological interactions and evolutionary relationships. In doing so, it uncovers the highly intricate antagonistic and mutualistic interactions that have evolved between plants and insects. The book concludes with a chapter on the application of our knowledge of insect-plant interactions to agricultural production." "This multidisciplinary approach will appeal to students in agricultural entomology, plant sciences, ecology, and indeed anyone interested in the principles underlying the relationships between the two largest groups of organisms on earth: plants and insects."--BOOK JACKET.Title Summary field provided by Blackwell North America, Inc. All Rights Reserved
Book Synopsis Evolutionary Strategies of Parasitic Insects and Mites by : Peter Price
Download or read book Evolutionary Strategies of Parasitic Insects and Mites written by Peter Price and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the invited lectures presented in a symposium entitled "Evolutionary strategies of parasitic insects and mites" at the national meeting of the Entomological Society of America in Minneapolis, Minnesota, 2-5 December, 1974. The intent was to bring together biologists who have worked on arthropods that are either plant or animal parasites in order to foster consideration of general aspects of the parasitic way of life. There seems to be a deficiency of ecological and evolutionary concepts relating to parasitism, in contrast to the burgeoning literature on predation, and it appeared that an amalgamation of studies on plant and animal parasites might help development of some generalities. Since parasities are far more numerous than predators in the world fauna, or in any particular community, emphasis on their study is justified. I freely admit that para sitoids have been usefully regarded as predators by ecologists, and many concepts on predation have been derived from their study. Also, in whichever category one places the parasitoids, that is the one which contains the most species. However, from an evolu tionary point of view they show many characteristics that must be regarded as those of a parasite. Notably, they are small, highly specific to their host, highly coevolved with it, as a result many species can coexist, and their adaptive radiation has produced the majority of the species diversity seen on Earth today.
Book Synopsis Poplars and Willows by : Jud G. Isebrands
Download or read book Poplars and Willows written by Jud G. Isebrands and published by CABI. This book was released on 2014-02-12 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt: Poplars and willows form an important component of forestry and agricultural systems, providing a wide range of wood and non-wood products. This book synthesizes research on poplars and willows, providing a practical worldwide overview and guide to their basic characteristics, cultivation and use, issues, problems and trends. Prominence is given to environmental benefits and the importance of poplar and willow cultivation in meeting the needs of people and communities, sustainable livelihoods, land use and development.
Book Synopsis Biological Control by Augmentation of Natural Enemies by : R. Ridgway
Download or read book Biological Control by Augmentation of Natural Enemies written by R. Ridgway and published by Springer Science & Business Media. This book was released on 2013-03-08 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: The protection of agricultural crops, forest, and man and his domestic animals from annoyance and damage by various kinds of pests remains a chronic problem. As we endeavor to improve pro duction processes and to develop more effective and acceptable tactics for achieving this protection, we must give high priority to all potentially useful techniques for the control and management of insects. Pest control is recognized as an acceptable and necessary part of modern agriculture. Methods employed vary greatly and tend to reflect compromises involving 3 determining factors: technological capability, economic feasibility, and social acceptability. How ever, these factors are also subject to change with time since each involves value judgments that are based on available information, cost, benefit considerations, the seriousness of the pest problem, and the political climate. Whatever method is chosen, energy resources continue to dwindle under the impact of increasing popu lation, and it is inevitable that greater reliance must be placed upon renewable resources in pest management. One alternative is the use of a pest management method that uses the energy of the pest's own biomass to fuel a self-perpetuating control system. The use of biological control agents for the control of pests has long been an integral part of the pest management strategy in crop production and forestry and in the protection of man and animals. The importance and unique advantages of the method are well recognized; numerous treatises deal with accomplishments and methodologies.
Book Synopsis Himalayan Gazetteer by : Edwin T. Atkinson
Download or read book Himalayan Gazetteer written by Edwin T. Atkinson and published by . This book was released on 2014-04-24 with total page 2631 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Himalayas have captivated the imagination and interest of humankind for centuries. The more we explore, the more we learn. India's rich history, society, and culture, are deeply influenced by the world's tallest mountain range. After all, before modern travel, the Himalayas were the most important gateway to India, for people, goods and ideas. This rare and invaluable record of the youngest mountain range in the world is back in print after a century. The extensively detailed information on every district, food habits, customs, influences, as well as the people and their vocations will provide a new perspective to a whole new generation of young readers. The aim of this publication is to make Atkinson's rich data accessible once again to researchers so that we can continue to refer to this rich source of information in our continued work to conserve the rich natural resources and ecological heritage of the Himalayas which stand frighteningly threatened by fast paced and largely unplanned development.
Book Synopsis U.S. Forest Service Research Paper SO. by :
Download or read book U.S. Forest Service Research Paper SO. written by and published by . This book was released on 1963 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Insect-plant Interactions by : Elizabeth A. Bernays
Download or read book Insect-plant Interactions written by Elizabeth A. Bernays and published by . This book was released on 1991 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biological Control of Arthropod Pests of the Northeastern and North Central Forests in the United States by : R. G. Van Driesche
Download or read book Biological Control of Arthropod Pests of the Northeastern and North Central Forests in the United States written by R. G. Van Driesche and published by . This book was released on 1996 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis European Pine Sawfly by : Louis F. Wilson
Download or read book European Pine Sawfly written by Louis F. Wilson and published by . This book was released on 1971 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Recycling Program written by and published by . This book was released on 1992 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Revision of the North American Species of the Genus Lithocolletis Hübner by : Annette Frances Braun
Download or read book Revision of the North American Species of the Genus Lithocolletis Hübner written by Annette Frances Braun and published by . This book was released on 1908 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Insect Outbreaks by : Bozzano G Luisa
Download or read book Insect Outbreaks written by Bozzano G Luisa and published by Elsevier. This book was released on 2012-12-02 with total page 593 pages. Available in PDF, EPUB and Kindle. Book excerpt: FROM THE PREFACE: The abundance of insects can change dramatically from generation to generation; these generational changes may occur within a growing season or over a period of years. Such extraordinary density changes or "outbreaks" may be abrupt and ostensibly random, or population peaks may occur in a more or less cyclic fashion....The goal of this book is to update and advance current thinking on the phenomenon of insect outbreaks. The contributors have reviewed relevant literature in order to generate a synthesis providing new concepts and important alternatives for future research. More importantly, they have presented new ideas or syntheses that will stimulate advances in thinking and experimentation.
Book Synopsis Sedge Moths of North America by : John B. Heppner
Download or read book Sedge Moths of North America written by John B. Heppner and published by Routledge. This book was released on 2019-08-08 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: Represents the first comprehensive study of these moths in North America north of Mexico using modern systematic procedures involving assessment of a number of morphological and biological characters in relation to their phylogenetic status. This study also represents a worldwide generic study made in conjunction with the revision of the North American species, primarily to ascertain realistic generic limits and the placement of the various genera once included in the heterogeneous concept of the family. Extralimital genera are noted in a catalog of generic names associated with the Glyphipterigidae.
