Controlled Field Test of Genetically Engineered Walnut Trees by University of California in Yolo County

Controlled Field Test of Genetically Engineered Walnut Trees by University of California in Yolo County PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 98

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The Bat House Builder's Handbook

The Bat House Builder's Handbook PDF Author: Merlin D. Tuttle
Publisher: University of Texas Press
ISBN: 9780974237916
Category : Nature
Languages : en
Pages : 36

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Book Description
Since 1994, this handbook has been the definitive source for bat house information. This new edition updates the original bat house plans and includes a new "rocket box" design, along with mounting suggestions, tips for experimentation, and more.

California Cultivator

California Cultivator PDF Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 790

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Insects and Diseases of Mediterranean Forest Systems

Insects and Diseases of Mediterranean Forest Systems PDF Author: Timothy D. Paine
Publisher: Springer
ISBN: 3319247441
Category : Technology & Engineering
Languages : en
Pages : 888

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Book Description
Insect and disease issues are often specific to the Mediterranean forest systems rather than shared with the temperate forests. In addition to the specific native insects and diseases, the forests are subject to the invasion of exotic species. The forests are also at risk from high degrees of human activity, including changing patterns of forest fires, land management activities, intensive plantation forestry using introduced timber species from other Mediterranean climate zones, and atmospheric deposition. Combined with elements of global climate change that may disproportionately affect Mediterranean climate systems, this creates a number of significant management issues that are unique to the Mediterranean forests. It is our goal that the information contained in this volume will contribute to understanding the unique aspects of Mediterranean forest systems and to protecting these critical resources.

Non-Chemical Weed Control

Non-Chemical Weed Control PDF Author: Khawar Jabran
Publisher: Academic Press
ISBN: 0128098821
Category : Science
Languages : en
Pages : 174

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Book Description
Non-Chemical Weed Control is the first book to present an overview of plant crop protection against non-food plants using non-chemical means. Plants growing wild—particularly unwanted plants found in cultivated ground to the exclusion of the desired crop—have been treated with herbicides and chemical treatments in the past. As concern over environmental, food and consumer safety increases, research has turned to alternatives, including the use of cover crops, thermal treatments and biotechnology to reduce and eliminate unwanted plants. This book provides insight into existing and emerging alternative crop protection methods and includes lessons learned from past methodologies. As crop production resources decline while consumer concerns over safety increase, the effective control of weeds is imperative to insure the maximum possible levels of soil, sunlight and nutrients reach the crop plants. - Allows reader to identify the most appropriate solution based on their individual use or case - Provides researchers, students and growers with current concepts regarding the use of modern, environment-friendly weed control techniques - Presents methods of weed management—an important part of integrated weed management in the future - Exploits the knowledge gained from past sustainable weed management efforts

Pesticide Resistance in Arthropods

Pesticide Resistance in Arthropods PDF Author: Richard Roush
Publisher: Springer Science & Business Media
ISBN: 1468464299
Category : Technology & Engineering
Languages : en
Pages : 312

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Book Description
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.

The Distribution of Forest Trees in California

The Distribution of Forest Trees in California PDF Author: James R. Griffin
Publisher:
ISBN:
Category : Forest ecology
Languages : en
Pages : 122

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Book Description
The distribution of 86 forest and woodland tree taxa native to California is illustrated on maps. Descriptive notes relate the distribution of each species to its ecological and taxonomic context, including the plant communities in which the tree commonly appears. Nearly one-fourth of the species illustrated are restricted to California, and the distribution of many others is centered in the State. Supplement contains corrigenda and addenda.

Toward Sustainable Agricultural Systems in the 21st Century

Toward Sustainable Agricultural Systems in the 21st Century PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309148960
Category : Technology & Engineering
Languages : en
Pages : 598

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Book Description
In the last 20 years, there has been a remarkable emergence of innovations and technological advances that are generating promising changes and opportunities for sustainable agriculture, yet at the same time the agricultural sector worldwide faces numerous daunting challenges. Not only is the agricultural sector expected to produce adequate food, fiber, and feed, and contribute to biofuels to meet the needs of a rising global population, it is expected to do so under increasingly scarce natural resources and climate change. Growing awareness of the unintended impacts associated with some agricultural production practices has led to heightened societal expectations for improved environmental, community, labor, and animal welfare standards in agriculture. Toward Sustainable Agricultural Systems in the 21st Century assesses the scientific evidence for the strengths and weaknesses of different production, marketing, and policy approaches for improving and reducing the costs and unintended consequences of agricultural production. It discusses the principles underlying farming systems and practices that could improve the sustainability. It also explores how those lessons learned could be applied to agriculture in different regional and international settings, with an emphasis on sub-Saharan Africa. By focusing on a systems approach to improving the sustainability of U.S. agriculture, this book can have a profound impact on the development and implementation of sustainable farming systems. Toward Sustainable Agricultural Systems in the 21st Century serves as a valuable resource for policy makers, farmers, experts in food production and agribusiness, and federal regulatory agencies.

California Grasslands

California Grasslands PDF Author: Mark R. Stromberg
Publisher: Univ of California Press
ISBN: 9780520252202
Category : Nature
Languages : en
Pages : 416

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Book Description
"This highly synthetic and scholarly work brings together new and important scientific contributions by leading experts on a rich diversity of topics concerning the history, ecology, and conservation of California's endangered grasslands. The editors and authors have succeeded admirably in drawing from a great wealth of recent research to produce a widely accessible and compelling, state-of-the-art treatment of this fascinating subject. Anyone interested in Californian biodiversity or grassland ecosystems in general will find this book to be an invaluable resource and a major inspiration for further research, management, and restoration efforts."—Bruce G. Baldwin, W. L. Jepson Professor and Curator, UC Berkeley "Grasses and grasslands are among the most important elements of the California landscape. This is their book, embodying the kind of integrated view needed for all ecological communities in California. Approaches ranging across an incredibly broad spectrum -- paleontology and human history; basic science and practical management techniques; systematics, community ecology, physiology, and genetics; physical factors such as water, soil nutrients, atmospherics, and fire; biological factors such as competition, symbiosis, and grazing -- are nicely tied together due to careful editorial work. This is an indispensable reference for everyone interested in the California environment."—Brent Mishler, Director of the University & Jepson Herbaria and Professor of Integrative Biology, UC Berkeley "The structure and function of California grasslands have intrigued ecologists for decades. The editors of this volume have assembled a comprehensive set of reviews by a group of outstanding authors on the natural history, structure, management, and restoration of this economically and ecologically important ecosystem."—Scott L. Collins, Professor of Biology, University of New Mexico

Managing California's Water

Managing California's Water PDF Author: Ellen Hanak
Publisher: Public Policy Instit. of CA
ISBN: 1582131414
Category : Business & Economics
Languages : en
Pages : 500

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