A Field Guide to Insects and Diseases of California Oaks (Enlarged Edition)


Book Description

FULL COLOR and Enlarged Edition - California has more than twenty-five native species, natural hybrids, and varieties of oaks (Quercus species). The form of these oaks ranges from large trees, up to about 25 m tall, to shrubs no taller than about 1.5 m. California's native oaks include representatives of three oak subgroups or subgenera (Table 1). Hybridization only occurs between oaks in the same subgroup. In addition, some insects, pathogens, and other agents may selectively colonize or damage oaks in certain subgroups.







Pests of the Native California Conifers


Book Description

This guide synthesizes the most current information available on the pests and environmental conditions that can damage California’s conifers, the vast majority of native trees in the state. Authoritative and easy-to-use, it is an essential reference for biologists, arborists, ecologists, foresters and everyone who needs up-to-date information on conifer pests in one convenient manual. o Species accounts cover life cycles, habits, distribution, and significance of each pest and discuss valuable options for reducing or avoiding damage o 111 clear color photographs show damage caused by 80 insects, diseases, fungi, parasitic plants, animals, and other destructive agents o The only guide to include information on environmental factors such as air pollution, salt, and frost as well as biological agents o Appendices list pests and diseases by tree species and by part of the tree affected







Poisonous Plants of California


Book Description

00 This highly informative volume describes California's native, naturalized, and cultivated plant species which can be poisonous and describes how to recognize them, where they are found, and what symptoms they produce. This highly informative volume describes California's native, naturalized, and cultivated plant species which can be poisonous and describes how to recognize them, where they are found, and what symptoms they produce.




Non-Chemical Weed Control


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




Annual Report ... to the Legislature


Book Description

This is a reproduction of the original artefact. Generally these books are created from careful scans of the original. This allows us to preserve the book accurately and present it in the way the author intended. Since the original versions are generally quite old, there may occasionally be certain imperfections within these reproductions. We're happy to make these classics available again for future generations to enjoy!




Forest Pathology and Plant Health


Book Description

This book is a printed edition of the Special Issue "Forest Pathology and Plant Health" that was published in Forests




Exotic Pests and Diseases


Book Description

Exotic pests and diseases have long been an important concern in agriculture. The problem is becoming increasingly urgent and complex because agricultural trade has been liberalized worldwide, and as a consequence, the probability of spreading a disease or a pest through national borders has become a real threat, not only for the agricultural industry but also for human health and the natural environment. This edited volume’s list of international contributors reads like a Who’s Who of international agricultural research! This book includes ten interdisciplinary case studies that focus on specific pests or diseases that represent a range of threats to U.S. agriculture, wild lands and the urban landscape, and possible government responses to these threats. Each chapter combines, in an original fashion, biological foundations and implications for the public, giving powerful insights to a series of public policy issues of national and international relevance. In many instances, economic analysis of alternative policies is included. Exotic pest control is discussed in a public good general framework, and under the international regulatory laws comprised by the Sanitary and Phytosanitary Protocol of the WTO.




Encyclopedia of Scale Insect Pests


Book Description

Scale insects feed on plant juices and can easily be transported to new countries on live plants. They sometimes become invasive pests, costing billions of dollars in damage to crops worldwide annually, and farmers try to control them with toxic pesticides, risking environmental damage. Fortunately, scale insects are highly susceptible to control by natural enemies so biological control is possible. They have unique genetic systems, unusual metamorphosis, a broad spectrum of essential symbionts, and some are sources of commercial products like red dyes, shellac and wax. There is, therefore, wide interest in these unusual, destructive, beneficial, and abundant insects. The Encyclopedia of Scale Insect Pests is the most comprehensive work on worldwide scale insect pests, providing detailed coverage of the most important species (230 species in 26 families, 36% of the scale insect pest species known). Advice is provided on collection, preservation, slide-mounting, vouchering, and labelling of specimens, fully illustrated with colour photographs, diagrams and drawings.