In nature, the roots of most plants are infected by symbiotic fungi to form mycorrhiza which play a central role in the capture of nutrients from the soil. Most of our knowledge of the biology of the mycorrhizal symbiosis has been derived from studies carried out under controlled conditions in the laboratory or glasshouse. There is an increasing awareness of the need to extend these studies to the more natural situations in which the symbiosis evolved and in which it normally functions. This volume brings together a series of papers which place major emphasis upon mycorrhizal function in nature. They consist of edited and revised contributions to the Third European Symposium on Mycorrhizas, held at the University of Sheffield, 19-23 August 1991.

Rachel Carson Environment Book Award, First Place (2018) IPPY Outstanding Book of the Year: Most Likely to Save the Planet (2018) Thorpe Menn Literary Excellence Award (2018) "Reads like a mystery novel as Gillam skillfully uncovers Monsanto's secretive strategies." --Erin Brockovich "A damning picture...Gillam expertly covers a contentious front." --Publishers Weekly "A must-read." --Booklist "Hard-hitting, eye-opening narrative." --Kirkus It's the pesticide on our dinner plates, a chemical so pervasive it's in the air we breathe, our water, our soil, and even found increasingly in our own bodies. Known as Monsanto's Roundup by consumers, and as glyphosate by scientists, the world's most popular weed killer is used everywhere from backyard gardens to golf courses to millions of acres of farmland. For decades it's been touted as safe enough to drink, but a growing body of evidence indicates just the opposite, with research tying the chemical to cancers and a host of other health threats. In Whitewash, veteran journalist Carey Gillam uncovers one of the most controversial stories in the history of food and agriculture, exposing new evidence of corporate influence. Gillam introduces readers to farm families devastated by cancers which they believe are caused by the chemical, and to scientists whose reputations have been smeared for publishing research that contradicted business interests. Readers learn about the arm twisting of regulators who signed off on the chemical, echoing company assurances of safety even as they permitted higher residues of the pesticide in food and skipped compliance tests. And, in startling detail, Gillam reveals secret industry communications that pull back the curtain on corporate efforts to manipulate public perception. Whitewash is more than an expos about the hazards of one chemical or even the influence of one company. It's a story of power, politics, and the deadly consequences of putting corporate interests ahead of public safety.

Plant pathogenic fungi cause devastating damage to crop production worldwide. The growing global population necessitates reduced crop losses to improve food security, and the control of fungal plant pathogens is vital to help maintain food production. Providing a concise and balanced review of fungicides used in crop protection, this book describes the science of fungicide use, selection and resistance within the context of farming situations. Major updates and additions reflecting the emergence of two new classes of fungicides (strobilurins and SDHI) and the increased incidence of fungicide resistance are included in this new edition, which also discusses legislative requirements to reduce fungicide applications, and current trends in fungicide use.

The handbook for student and practising plant pathologists has been thoroughly reorganised and updated since the publication of the 2nd edition in 1983. Features include: rearrangement of topics to facilitate use; 49 short succinct chapters, each providing practical information; new topics - landmarks in plant pathology, survey of sampling procedures, disease evaluation, effects of climate change, biochemical and molecular techniques, epidemic modelling, breeding for resistance, laboratory safety and electronic databases; and seven overall sections covering disease recognition and evaluation, causation, diagnosis, investigation, control, general techniques, and presentation of results.

Fruit flies are a major issue facing horticultural producers, and as global warming and species migration become more prevalent issues there is an urgent need for easy identification of these pests. A companion volume to the recently published "Tropical Fruit Flies of South-East Asia (Tephritidae: Dacinae)", this book provides fully-illustrated keys for the identification of all currently-known Dacinae fruit flies. Focusing on south-east Asian fauna, it covers areas including India, Bhutan, Nepal, Sri Lanka, Myanmar, China, Taiwan, Japan, the Philippines, Palau, Vietnam, Thailand, Singapore, Malaysia and Indonesia. This major new reference work is produced by experts with over 80 years' combined research experience, and through simple identification information can help prevent these major pest species being introduced to new geographical areas. Of particular value to agriculture and quarantine officers responsible for the detection of new incursions, where early detection is both economical and essential to guarantee eradication, this book is also a valuable resource for researchers and students of agriculture and entomology.

In light of public concerns about sustainable food production, the necessity for human and environmental protection, along with the evolution of herbicide resistant weeds, call for a review of current weed control strategies. Sustainable weed control requires an integrated approach based on knowledge of each crop and the weeds that threaten it. This book will be an invaluable source of information for scholars, growers, consultants, researchers and other stakeholders dealing with either arable, row, cash, vegetables, orchards or even grassland-based production systems. The uniqueness of this book comes from the balanced coverage of herbicide effects on humans and environment in relation to best weed control practices of the most important cropping systems worldwide. Furthermore, it amalgamates and discusses the most appropriate, judicious and suitable weed control strategies for a wide range of crops. It reviews the available information and suggests solutions that are not merely feasible but also optimal.

This book clearly defines ways to maximize the allelopathic potential of important field crops for controlling weeds, either in the same crop or others. Compared to the use of herbicides, allelopathy is an attractive option to control weeds naturally under field conditions. The book highlights the allelopathic potential of several important cereals (wheat, maize, rice, barley, sorghum, rye) and two oilseed crops [sunflower and canola (as well as some other member of Brassicaceae family)]. Further, the book explains how the allelopathic potential of these crops can be manipulated under field conditions to suppress weeds. This is possible by growing allelopathic crop cultivars, using mulches from allelopathic crops, intercropping an allelopathic crop with a non-allelopathic crop, including allelopathic crops in crop rotation, or using allelopathic crops as cover crops. Equipped with several basic concepts of allelopathy, this book will be highly useful for the farming community as well as students and researchers.

Soilborne diseases have, until recently, received less attention than plant diseases affecting the shoot and foliage. However, this is not a reflection of their economic importance, but rather of difficulties in investigating and detecting pathogens below soil level. Many soilborne diseases are stress related and it is in the tropics where crop growth is particularly limited by environmental stress, predisposing crops to infection by soilborne pathogens. There is thus a great need for information on soilborne diseases of crops in the tropics. This book aims to fill this need by providing reviews of relevant research. It covers the major tropical crops and also includes general chapters on principles, ecology and control. Written by leading research workers from countries including the UK, USA, Australia and India, it will be indispensable for plant pathologists working in this area.

This book presents a global overview of the background to, and the current state of, crop protection and pest management in cotton crops. Cotton is one of the most economically important crops in the world and has been grown for centuries but maintaining high yields of good quality requires sophisticated approaches to pest management. The introduction and use of pesticides over the decades significantly increased cotton yields but lead to many adverse environmental impacts. Over time, new and alternative insecticides were developed but overuse has enabled pests to develop significant resistance. The development of genetically modified cotton varieties with toxins derived from Bacillus thuringiensis enabled much improved control of lepidopteran larvae, including bollworms, but as the toxins had no effect on sucking pests, farmers had no choice but to continue using insecticides. Also, some of the new cotton varieties developed in recent times have not adapted to different climatic conditions and the quality of cotton fibre declined as a result. This book shows the need for more research to select cotton varieties with high quality fibres suitable for different cotton growing areas and to develop integrated pest management strategies to minimise the use of pesticides. It also demonstrates the need for an inter-disciplinary approach bringing together plant breeders, entomologists, plant pathologists, agronomists and agricultural engineers to achieve high yields of high quality cotton. In the future, farmers will need to adopt new technology to determine when and how pesticides are used in conjunction with cultural and biological control strategies. * Emphasises the importance of research on growing cotton in a world experiencing climate change * Demonstrates how crucial crop protection is in achieving high yields of high quality cotton * Shows how new technology will bring major changes in how cotton is grown in the future

Sheep and goats are farmed throughout the world for meat, fiber, milk and leather. These small ruminants are very susceptible to external parasites, which has significant implications for their health and welfare as well as the quality and value of the end products for which they are farmed. This book gives practical guidance on preventing and controlling ectoparasites that contribute to disease and infection in sheep and goats, discussing types of parasites, the diseases they cause and what methods of control are available, as well as wider implications such as animal welfare and environmental impacts.

This book fills the need for a comprehensive treatment of rice entomology under one cover. The contributors to this book, drawn from various related disciplines, discuss the fundamentals of rice entomology, the biology and ecology of rice insects and the various techniques of rice insect control, namely, host plant resistance, cultural, mechanical and physical controls, predators and parasitoids, pathogens and insecticides.

"Provides a detailed summary of pest management principles and techniques, outlining a broad selection of critical issues regarding current practice and future technology in this area. Discusses the role of soils, weather, and surrounding habitats in regulating pest occurrence and severity."

This book provides a comprehensive, species-by-species account of all the world s tree-dwelling aphids. It can be used both as an identification guide by entomologists and taxonomists, and as a database in studies of biosystematics and biodiversity. In all, 1758 aphid species are covered, feeding on trees in 355 genera. There are detailed host lists and illustrated keys to the aphids colonizing each tree genus, followed by a systematic treatment of the aphid species in alphabetical order of genera, with information on appearance in life, host range, distribution, life cycle and natural enemies. There are 722 drawings, 108 photographs and more than 1800 literature references. The volume will be a standard reference for workers in entomology and forestry."

The book is based on papers presented at a conference held in Oxford, in March 1993, under the BRIDGE-COST-88 program developed by the Commission of the European Communities. A wide range of fungi, which are pathogens of a variety of crop and ornamental plants, is covered and the book is aimed at postgraduate students and research workers in mycology and plant pathology, including those involved in routine testing of plants for quarantine or other purposes.

Originally published in 1920, this book was predominantly aimed at fruit growers and was one of the most comprehensive reference guides to pests and fungus diseases at this time. Part one of the book focuses on common insect pests such as the caterpillar, the winter moth and the beetle, discussing their features and environment, whilst part two of the book examines the myriad fungus diseases of fruit and hops and details the intrinsic traits of each disease. Part three goes on to discuss the diverse methods of spraying and deals with prevention, remedies and treatment. Additionally, the book contains multiple illustrations and historic photographs. This book is an important record of the most prevalent pests and fungus diseases in the early twentieth-century landscape and will be of particular value to anyone interested in the history of botany and agricultural science.

This textbook explores aspects of biology and ecophysiology of weeds, weed competition and interference in crops, phytosociological survey, methods of control and weed integrated management. Herbicides are of great importance in weed management and are one of the most widely used pesticide groups for weed control across the globe. Offering a new direction for research that focuses on herbicide behavior in plants, hormesis, evolution of weed resistance to herbicides, and genetically modified crops resistant to herbicides, this book covers the recent research in applied weed and herbicide science. This book provides essential and updated information on various subjects regarding the advances in herbicide science; and it is intended for professors, undergraduate, and graduate students, rural producers and other professionals involved in the area of applied weed and herbicide science. Agriculturists, analytical chemists, and toxicologists will find this book rewarding.

Among the highlights of this book is the use of novel insecticides acting on a specific site in an insect group and are compatible with natural enemies and the environment. One of such approaches is based on disrupting the activity of biochemical sites acting on transcription factors such as the Helix-Loop-Helix (bHLH) family, anti juvenile hormone (AJH) agents that target JH biosynthetic enzymes, G-protein coupled receptors (GPCR) and bursicon as a target for insect control. Another one is the biotechnology or the genetic approach such as gene silencing (RNA interference) and Bt-crops. Other sections of the book are devoted to the plant's natural products, optical manipulation and the use of nanotechnology for improving insect control methods.

First published in 1923, as the second edition of a 1916 original, this book presents a practical introduction to farm and garden pests. The text was was written to provide a guide to the more common pests affecting crops so that market gardeners and farmers could increase their yields. Numerous illustrative figures are included, together with appendices. This book will be of value to anyone with an interest in insects, agriculture and the history of science.

First published in 1948 as the second edition of a 1931 original, this book deals with the main types of insects found on British farms, the damage they can cause and the various weeds that can harbour them. The text is richly illustrated with photographs and drawings of the insects, their eggs and the symptoms of their attack on common farm plants. This book will be of value to anyone with an interest in the history of entomology.

Public concern is being increasingly directed to pesticides and their residues in ground and surface waters. Water - one of the necessities of life - has to be kept clean for man and the environment. Part I and II of this book describe in an authoritative way all aspects of modern analysis of pesticides in water by the consequent use of hyphenated techniques like GC-AED or HPLC-MS.

This practical book covers all aspects of the biology of malaria vectors, with notes on the vectors of dengue. It is the first work in this field to concentrate on mosquitoes, rather than covering all disease vectors. Authored by renowned field entomologist Jacques Derek Charlwood, it disseminates his vast experience working on mosquito biology, ecology and the evaluation of new vector control tools across five continents over the past 40 years. Covering all aspects from classification and systematics, population dynamics, vector control, to surveillance and sampling, epidemics, and a selection of case histories, the book also considers genetics and resistance, Aedes biology, and malaria and dengue models. It is designed to fill the gap between very specialized texts and undergraduate books on general disease vectors, and is ideal as a textbook for postgraduate courses in entomology and mosquito vectors of disease.

There is now a considerable literature on chemical ecology, which had its beginnings in the study of insect pheromones. This beginning was possible only by combining the disciplines and techniques of biology and chemistry. For a biologist, it is difficult to understand the time frames of analytical and synthetic chemistry. A compound may take days to characterize and be available in minutes from a bottle on the shelf, or it may take years to characterize and synthesize. Chemists have a similar frustration: after an intense programme of work, the insect in question may not emerge for many months. study are, however, The rewards of integrated interdisciplinary considerable, because they allow us to understand many facets of insect behaviour and consequently to control that behaviour for our own ends. In this book, we have set out to explain the results of research from chemical and biological perspectives, and see how the knowledge gained has led to novel techniques that can be used in insect pest management and insect control. An important part of understanding insect chemical ecology involves the understanding not only of new concepts but of the vocabularies used by scientists specializing in different fields. It will be clear that the three sections of this book have been written by three different people: an insect behaviourist, an organic chemist and a biologist in industry."

"What is a "weed, "" opined Emerson, "but a plant whose virtues have not yet been discovered?" While that may be a worthy notion in theory, these plants of undiscovered virtue cause endless hours of toil for backyard gardeners. Wherever they take root, weeds compete for resources, and most often win. They also wreak havoc on industry--from agriculture to golf courses to civic landscape projects, vast amounts of money are spent to eradicate these virile and versatile invaders. With so much at stake, reliable information on weeds and their characteristics is crucial. Richard Dickinson and France Royer shed light on this complex world with "Weeds of North America, "the essential reference for all who wish to understand the science of the all-powerful weed.
Encyclopedic in scope, the book is the first to cover North American weeds at every stage of growth. The book is organized by plant family, and more than five hundred species are featured. Each receives a two-page spread with images and text identification keys. Species are arranged within family alphabetically by scientific name, and entries include vital information on seed viability and germination requirements.
Whether you believe, like Donald Culross Peattie, that "a weed is a plant out of place," or align with Elizabeth Wheeler Wilcox's "weeds are but unloved flowers," Dickinson and Royer provide much-needed background on these intrusive organisms. In the battle with weeds, knowledge truly is power. "Weeds of North America" is the perfect tool for gardeners, as well as anyone working in the business of weed ecology and control.

The outbreaks of myxomatosis among rabbits in Australia in 1950 and in Europe in 1952 provided scientists with opportunities of observing the course of the interaction of a very lethal virus disease with a large population of highly susceptible mammals, i.e. with a model system to study the evolution of an infectious disease, and the effects of an infectious disease on the evolution of a mammal. This scientific account of the spread of the disease in Australia and Europe, of its effects upon rabbit numbers, and of the genetic changes that occurred in parasite and host, is of great interest to ecologists, virologists, parasitologists, mammalian zoologists, geneticists, agriculturists, and public health workers, as well as to those directly concerned with rabbit raising or control.

Integrated Pest Management (IPM) is an effective and environmentally sensitive approach to pest management. It uses natural predators, pest-resistant plants, and other methods to preserve a healthy environment in an effort to decrease reliance on harmful pesticides. Featuring forty chapters written by leading experts, this textbook covers a broad and comprehensive range of topics in integrated pest management, focused primarily on theory and concepts. It is complemented by two award winning websites, which are regularly updated and emphasize specific IPM tactics, their application, and IPM case studies: Radcliffe's IPM World Textbook - http: //ipmworld.umn.edu VegEdge - www.vegedge.umn.edu The two products are fully cross-referenced and form a unique and highly valuable resource. Written with an international audience in mind, this text is suitable for advanced undergraduate and graduate courses on Integrated Pest Management, Insect or Arthropod Pest Management. It is also a valuable resource for researchers, extension specialists and IPM practitioners worldwide.