The history of pathogens and vectors, unique symptoms of diseases and economic importance of important viral diseases have been dealt with in the introductory chapter of this book. While highlighting the role of arthropods, nematodes, and fungi; other agents of the spread of plant pathogens have also been included. Important aspects of insect vectors with direct bearing on transmission, i.e. vector identification, biology, feeding apparatus, and mechanism of spread including control of pathogens through vectors are covered comprehensively. As aphids and other hemipterous insects are major insect vectors, the book stresses on this order. There is a focus on the transmission of determinants under different categories of the transmission mechanism. The transmission determinant paradigm comprising coat protein and helper component has been expounded with recent cases. A brief description of new diseases at least one from each genus of plant viruses has been included in this compendium to elucidate the interaction of vector and virus. Phytoplasmal etiology of pathogens has been detailed separately on account of their importance. The transmission of plant viruses through insects with biting and chewing type of mouth parts has been discussed in detail as separate chapter. The latest research in the field of mites, nematodes, and fungi as vectors of plant viruses has been included. How the phytotoxemia is different from other crop disorders, has been critically explained with support from suitable and common examples of crop disorders. The book also highlights the effects of plant viruses on their vectors. An account of classification of plant viruses has also been given for better understanding of subject matter. Likewise, the information on the electron microscope along with its use has been included so as to define the procedure of examining sub-microscopic entities. The latest developments in the management of plant pathogens through vector management have been discussed with special reference to the use of biotechnology, crop protection, and plant resistance. The book will be of value to the teachers and to researchers. It will also be useful for extension workers in managing crop disorders. Students and researchers of entomology, plant pathology, plant protection and virology disciplines will obtain the latest in the field, through this book.

Pesticide Application Methods is the standard work on the subject for all those involved in crop protection. This fully updated Fourth Edition takes account of the considerable changes in legislation, especially within the European Union, affecting some pesticides and how they can be applied. With greater emphasis now on protecting the environment, an additional chapter in this edition describes the importance of managing treatments to minimise spray drift, and the chapter on applying biopesticides has been updated, with the assistance of Paul Miller and Roy Bateman respectively. Basic information on the role of pesticides in integrated pest management is given with a discussion on the importance of defining the target and choice of spray spectrum to optimise delivery. The range of droplets and types of equipment for different methods of application, including seed treatment, are described with information on safe use and maintenance. Pesticide Application Methods, 4th Edition, provides an essential reference for all those involved in crop protection, including entomologists, plant pathologists, weed scientists and agricultural engineers, whether researchers, consultants or those training in international, government or academic organisations, or the plant science industry. Libraries in all universities and research establishments where agricultural and biological sciences are studied or taught should have copies of this excellent new edition on their shelves.

Pictorial Atlas of Soil and Seed Fungi: Morphologies of Cultured Fungi and Key to Species, Third Edition describes and illustrates more than 515 fungal species, including:

• 49 oomycetous species belonging to seven genera
• 42 zygomycetous species belonging to 12 genera
• 52 ascomycetous species belonging to 28 genera
• 42 basidiomycetous species belonging to 27 genera
• 319 anamorphic (deuteromycetous or mitosporic) species belonging to 145 genera

Dr. Watanabe describes all fungi alphabetically under the orders of Oomycota, Zygomycota, Ascomycota, Basidiomycota, and Anamorphic (Deuteromycetous) fungi. For each genus, he includes type species, references, morphology, and materials. Morphologies of cultured fungi are briefly described and illustrated together with the description of the isolation sources and methods.
The book illustrates all fungi alongside morphologies and colonies of their fresh agar cultures or dried specimens, providing ready access to morphologically similar fungi for quick comparison.
Most of the fungi are isolated from soil, plant roots, and seeds, and the rest are from wood-inhabiting fruiting bodies, their spores, or the spore-like structures associated with them. They are mostly collected in Japan, but some are from the Dominican Republic, Paraguay, Switzerland, and Taiwan, R.O.C.

Harold Maxwell-Lefroy, the founder of Rentokil, was a maverick and a man of enormous drive and energy. From an early age he was fascinated with the insect world, and his thorough understanding of species' life cycles and habits, in its practical application, was to change the face of agriculture in several parts of the world. He was among the first really to apply the scientific method to dealing with insect pests, and the agriculture of the Caribbean and India still owes him an enormous debt. His book Indian Insect Pests is still in print, an invaluable resource to Indian agriculturalists. In the Caribbean he saved the sugar crop which had been ravaged by pests, and was then sent to India as the official entomologist. Here his energy and drive led to an education programme for Indian farmers that for the first time showed them that the devastating consequences of insect pests were avoidable, along with the destruction of livelihoods that had always been an occupational hazard. He became the first Professor of Entomology at Imperial College and developed patented anti-pest chemical treatments that led him to create Rentokil towards the end of his life - trademark rules barred him from calling it Entokil, as he had wanted to. He went on to save the roof of Westminster Hall from the death-watch-beetle infestation that would certainly have led to its collapse. But he was also an inveterate risk-taker, who drove without regard for his own safety, and applied the same principles to his scientific practice. He died at the young age of 48, overcome by the poisonous gases he was developing - without the proper breathing equipment. Rentokil is his most tangible legacy, but it all began with one man's single-minded dedication to the application of science.

Plant-parasitic nematodes are recognized as one of the limiting factors in crop production all over the world. They impair the quality of crops and cause significant yield losses, seriously threatening global food security. Management of these creatures is a vital aspect of the agricultural process and has often depended upon the use of hazardous chemical nematicides, but the disadvantages of these substances have created interest in searching for alternate safe methods of phytonematode management. This book highlights the use of biocontrol agents as a novel, eco-friendly approach in the management of plant-parasitic nematodes. Besides covering the ecology, diversity and geographical distribution, survival biology and virulence mechanisms of potential biocontrol agents, their limitations have also been described. Reviewing biocontrol agents such as nematophafous fungi, parasitic bacteria, predaceous mites, rhizobacteria, mycorrhiza and predaceous nematodes, the book discusses future research needs in detail. Written in a clear and informative style by eminent nematologists from around the world, this book provides a source of valuable information for researchers, teachers, students of plant nematologym enabling them to plan better strategies for managing plant-parasitic nematodes.

Many biological studies on insect management do not consider economics or fundamental economic principles. This book brings together economists and entomologists to explain the principles, successes, and challenges of effective insect management. It highlights the importance of economic analyses for decision making and the feasibility of such approaches, and examines integrated pest management (IPM) practices from around the world with an emphasis on agriculture and public health. The book begins by establishing an economic framework upon which to apply the principles of IPM. It continues to examine the entomological applications of economics, specifically, economic analyses concerning chemical, biological, and genetic control tactics as well as host plant resistance and the cost of sampling and is illustrated with case studies of economic-based IPM programs from around the world.

"Weed Biology and Climate Change" will provide a synthesis of what is known regarding the probable impact of environmental change on weed biology. Chapters will look at impacts of weed biology on agriculture, invasive species that limit ecological diversity and weeds that serve as health risks. In addition it looks at current weed management strategies and how they will be affected by global climate change. The book covers an increasingly important area in plant science, crop science and ecological research, and will be essential reading for anyone exploring the biological impacts of a changing environment.

Recommended in CHOICE, February 2021 Insects are all around us, outweighing humanity by 17 times. Many are nuisances; they compete with us for food and carry some of our most devastating diseases. Many common pests have been transported worldwide by humans. Yet, some recent reports suggest dramatic declines in some important groups, such as pollinators and detritivores. Should we care? Yes, we should. Without insect pollinators we'd lose 35% of our global food production; without detritivores, we would be buried in un-decayed refuse. Insects are also critical sources for nutritional, medical and industrial products. A world without insects would seem a very different and unpleasant place. So why do insects inspire such fear and loathing? This concise, full-color text challenges many entrenched perceptions about insect effects on our lives. Beginning with a summary of insect biology and ecology that affect their interactions with other organisms, it goes on to describe the various positive and negative ways in which insects and humans interact. The final chapters describe factors that affect insect abundance and approaches to managing insects that balance their impacts. The first textbook to cater directly to those studying Insect and Society or Insect Ecology modules, this book will also be fascinating reading for anyone interested in learning how insects affect human affairs and in applying more sustainable approaches to "managing" insects. This includes K-12 teachers, undergraduate students, amateur entomologists, conservation practitioners, environmentalists, as well as natural resource managers, land use planners and environmental policy makers.

Crop disease management strategies revolve around the principles of exclusion, eradication and immunization. Cultural practices are aimed at preventing or reducing the accumulation of pathogen population (inoculum). Development of cultivars with genetic resistance by transgressing resistance gene(s) through traditional breeding procedures or biotechnological techniques is the most effective and acceptable strategy, as it is environment-friendly and does not need any additional cost to the grower. Assessment of different grades of resistance of cultivars or genotypes to soilborne microbial pathogens has been possible by quantifying pathogen populations or their DNA contents in the test plants by applying biological and molecular methods. This second volume of a two-volume set focuses on the soilborne microbial plant pathogens and the diseases caused by them. The book provides information on ecology and epidemiology of soilborne microbial plant pathogens and various strategies applicable for effective management of diseases. Chapters cover exclusion and prevention strategies; improvement of host plant resistance; biological management; application of chemicals; and integration of these disease management strategies. Features Discusses various aspects of soilborne microbial plant pathogens to develop effective methods of managing diseases. Presents information on epidemiology and ecology of soilborne microbial plant pathogens. Facilitates the application of management strategies alone or in combination with others for effective suppression of disease development. Features information on application of biotic and abiotic biological control agents (BCAs) to suppress pathogen development either by directly acting on the pathogen(s) or indirectly by enhancing host resistance to the pathogens. Employs biotic and abiotic biocontrol agents either to replace or reduce the use of chemicals is an achievable approach for managing the soilborne microbial pathogens.

Soilborne microbial plant pathogens including oomycetes, fungi, bacteria and viruses cause several economically important destructive diseases and the symptoms of infection can be recognized only after the pathogen has invaded many tissues primarily vascular tissues of susceptible plants. This condition places formidable challenges in investigating different aspects of host-microbial pathogen interactions. Early detection of infection and precise identification, differentiation, and quantification of the microbial plant pathogens in plants, soil and water sources are essential requirements for development of effective tactics to reduce the incidence and spread of the diseases caused by them. As the microbial plant pathogens differ in their virulence and sensitivity to the environment and chemicals applied, it is imperative to assess the extent of variability in the concerned pathogens. This first volume of a two-volume set introduces disease-causing microorganisms including oomycetes, fungi, bacteria, and viruses found in soils. It focuses on the biology, detection, and identification of soilborne bacterial, fungal, and viral plant pathogens. This volume discusses various techniques based on biological, immunological and genetic properties of the pathogens indicating their advantages and limitations for selecting the appropriate technique to fulfill the requirements. Features: Presents techniques useful for detection, identification, quantification of microbial plant pathogens in plants, soil, and irrigation water from waterbodies. Highlights subversive activities of viruses, resulting in the breakdown of host defense systems. Discusses RNA silencing in infected plants by viruses and posttranscriptional gene silencing (PTGS) functioning as an endogenous mechanism in plants against virus infection. Presents information on methods of assessment of genetic variability and sensitivity of microbial plant pathogens to chemicals and adverse environmental conditions.

Despite a history of several decades of pesticide regulation, continuous innovation, and considerable practical experience with using pesticides in agriculture, the environmental impact of pesticide use continues to be of serious concern.

A comprehensive reference-cum-textbook on fundamentals and principles of weed science. Includes updated information on newer approaches (ecophysiological and biological) in weed management, newer herbicides, bioherbicides, herbicide action mechanisms and transformations in plants, herbicide persistence and behaviour in soil and environment, and interaction of herbicide with other aerochemicals.

This volume offers the latest theory, procedures, techniques and applications pertaining to the bioremediation of pesticides, as well as current case studies. The book is composed of chapters written by global experts and is divided into three topical sections. Section A deals with concepts and mechanisms of pesticides bioremediation; Section B examines latest tools and techniques; Section C offers global case studies of pesticides bioremediation. The novel methods described here are timely, as traditional pesticide usage leads to high wastage via decay, vaporization and seepage. This of course leads to environmental contamination and has necessitated the development and use of novel technologies like bioremediation for minimizing the impact of pesticides on the environment. This volume will be of relevance to academics, researchers and students who are working in the realm of pesticide bioremediation, and will enable policy makers and managerial experts across the globe in drafting policies and strategies for the management and treatment of pesticides.

Since the publication of the first edition of this book in 2003, the status of many important invasive plants around the world has changed dramatically. Species have extended their ranges, new literature has been accumulated, and control methods have been improved. Research on some plant invaders has also focused on the species' ecology and impacts, confirming that invasive plants continue to pose serious threats to species and ecosystems. Given their range expansions and introduction via international trade, these problems will only become more serious in the future. Providing the latest information on the most important invasive plants, this new edition: - Contains 50 new species, chosen for their impacts on ecosystems and native species - Reviews the most significant new publications on ecology and species management - Updates introduced, invasive and native ranges, providing an easy-reference, full-colour map for each species - Provides new and improved control methods Including colour images of each species, this up-to-date reference guide on the most important plant invaders is an invaluable tool for both researchers and policy makers.

Pathogen resistance to fungicides has become a challenging problem in the management of crop disease. It has threatened the performance of some highly potent commercial fungicides, resulting in resistance to more than one hundred different active ingredients reported from around the world. This book compiles information on fungicide resistance over the past three decades, beginning with the history of resistance development, then exploring the status, detection and management of resistance in pathogens to different groups of fungicides with diverse case studies from countries including France, India, Italy, Japan and the US. It also discusses the genetics of resistance and the problem of multidrug resistance, before concluding with an overview of the work and initiatives of the Fungicide Resistance Action Committee for managing this problem.An essential resource for researchers and students of plant pathology and mycology, this book is also a useful collection of the present status and future projections of fungicide resistance for extensions workers and pesticide industry personnel.

Western Corn Rootworm, "Diabrotica virgifera virgifera LeConte," has been a major economic pest of maize in the Americas for many years. However, since the early 1990s, it has become an increasing threat to crops in Europe and is expected to spread to all maize growing areas of the continent. This book provides a comprehensive review of current knowledge of the biology and ecology of this insect pest and how it might be managed in order to limit its damage as it spreads into new agroecological areas. Cultural, biotechnical and biological control measures are addressed, as are ecological baseline data such as population dynamics, economic thresholds and aspects of its behavior. The book also examines the potential of plant protection techniques currently used in North America to be applied in Europe.

Ornamental trees, shrubs and flowers have always been extremely popular and there is large demand-whether in gardens or parks-for alpines, bedding plants, cacti, cut flowers, house plants and pot plants, as well as herbaceous plants, ornamental grasses, shrubs and trees. The first edition of this comprehensive and beautifully illustrated book was extremely successful and it has now been fully revised and updated. The second edition contains over 60 new pests and almost 90 new color photographs. The book opens with a review of the main features of insects, mites and other major pest groups. The principles of pest control of ornamental plants are discussed, followed by sections on the various pests. Each major order and family is considered in turn, with details of their status, host range, world distribution, diagnostic features and biology. Descriptions of the characteristic damage caused are also given. Pests of Ornamental Trees, Shrubs and Flowers provides a unique source of permanent reference for all involved in the recognition, biology and control of the pests of ornamental crops, including professionals, scientists and students in agriculture, horticulture and entomology, and amateur gardeners.

This book has been developed from the keynote addresses delivered at the third IOBC International Symposium (co-organized with CILBA) that was held in Montpellier in October 2002, to address recent developments in genetics and evolutionary biology as applied to biological control. Chapters are organized around the following themes: Genetic structure of pest and natural enemy populations, Molecular diagnostic tools in biological control, Tracing the origin of pests and natural enemies, Predicting evolutionary change in pests and natural enemies Compatibility of transgenic crops and natural enemie, Genetic manipulation of natural enemies. The authors identify new issues for each of the major approaches in applied biological control. These include the (1) use of molecular genetics to trace the origin of target pests in classical biological control, (2) potential of mass-reared, transgenic agents in augmentative biological control, and (3) compatibility of transgenic crops and natural enemies in conservational biological control.

Naturally occurring toxins are among the most complicated and lethal in existence. Plant species, microorganisms and marine flora and fauna produce hundreds of toxic compounds for defence and to promote their chances of survival, and these can be isolated and appropriated for our own use. Many of these toxins have yet to be thoroughly described, despite being studied for years. Focusing on the natural toxins that are purely toxic to insects, this book contains over 500 chemical structures. It discusses the concepts and mechanisms involved in toxicity, bioassay procedures for evaluation, structure-activity relationships, and the potential for future commercialization of these compounds. A comprehensive review of the subject, this book forms an important source of information for researchers and students of crop protection, pest control, phytochemistry and those dealing in insect-plant interactions.

New technologies are becoming available for managing glyphosate resistant (GR) weeds and reducing their spread. GR crop technology has revolutionized crop production in the developed world and the benefits are gradually spilling over to the developing world. In order to sustain an effective, environmentally safe herbicide such as glyphosate and the GR crop technology well in to the future, it is imperative that the issue of GR weeds be comprehensively understood. This book provides such an essential, up-to-date source of information on glyphosate resistance for researchers, extension workers, land managers, government personnel, and other decision makers. * Provides comprehensive coverage of the intensely studied topic of glyphosate resistant (GR) in crops * Details the development of glyphosate resistance and how to detect and manage the problem in crops * Helps standardize global approaches to glyphosate resistance * Encompasses interdisciplinary approaches in chemistry, weed science, biochemistry, plant physiology, plant biotechnology, genetics, ecology * Includes a chapter on economic analysis of GR impact on crops

Plant parasitic nematodes are costly burdens of crop production, causing an estimated US$80 - 118 billion per year in damage to crops. They are associated with nearly every important agricultural crop, and are a significant constraint on global food security. Regulations on the use of chemical pesticides have resulted in growing interest in alternative methods of nematode control. Future changes in climate, cropping systems, food habits, as well as social and environmental factors also affect the options for nematode control. Taking a systematic crop by crop approach, this book: Outlines the economic importance of specific plant parasitic nematode problems on the major food and industrial crops. Presents the state-of-the-art management strategies that have been developed to reduce specific nematode impacts, and outlines their limitations. Contains case studies to illustrate impact in the field. Aims to anticipate future changes in nematode disease pressure that might develop as a result of climate change, and new cropping systems.

Millets and sorghum are extremely important crops in many developing nations and because of the ability of many of them to thrive in low-moisture situations they represent some exciting opportunities for further development to address the continuing and increasing impact of global temperature increase on the sustainability of the world s food crops. The main focus of this thorough new book is the potential for crop improvement through new and traditional methods, with the book s main chapters covering the following crops: sorghum, pearl millet, finger millet, foxtail milet, proso millet, little millet, barnyard millet, kodo millet, tef and fonio. Further chapters cover pests and diseases, nutritional and industrial importance, novel tools for improvement, and seed systems in millets. Millets and Sorghum provides full and comprehensive coverage of these crucially important crops, their biology, world status and potential for improvement, and is an essential purchase for crop and plant scientists, and food scientists and technologists throughout the developed and developing world. All libraries in universities and research establishment where biological and agricultural sciences are studied and taught should have copies of this important book on their shelves.

This book provides an invaluable review of the current methodologies used for assessing the environmental impacts of invertebrate biological agents used to control pests in agriculture and forestry. It explores methods to evaluate post-release effects and the environmental impact of dispersal, displacement and establishment of invertebrate biological control agents. It covers methodology on screening for contaminants, the use of molecular methods for species identification and the determination of interbreeding. The book also discusses the use and application of information on zoogeographical zones, statistical methods and risk-benefit analysis. It gives practical advice on how to perform science-based risk assessments and on how to use new technology and information.

Highly Recommended in CHOICE, Jan 2020, Vol 57, 5 Insects are key components of life on our planet, and their presence is essential for maintaining balanced terrestrial ecosystems. Without insects humans would struggle to survive, and on a world scale food production would be severely compromised. Many plants and animals depend directly or indirectly on insects for their very survival, and this is particularly so in the case of insectivorous birds and other such creatures. The beneficial role of insects is often overlooked or misunderstood, and in farming circles their very presence on crops is often seen to be unwelcome. In reality, however, many insects are genuinely beneficial, as in the case of parasitic and predacious species. The use of chemical pesticides to control crop pests is becoming more tightly regulated and environmentally undesirable, and low-input farming, in which natural enemies of pests are encouraged to survive or increase, is becoming far more prevalent. Accordingly, Integrated Pest Management (IPM) and Integrated Crop Management (ICM) strategies are increasingly being developed, advocated and adopted. Features: Highlights information on many groups of insects and mites that act as natural enemies or biological control agents of phytophagous insects and mites, including plant pests. Profusely illustrated with high-quality colour photographs. Focuses mainly on insects and mites as natural enemies of plant pests, including parasitic and predacious species that have been accidentally or deliberately introduced in classical biological control programmes. Reviews the role of phytophagous European insects and mites in controlling or managing European plants that have become invasive weeds in other parts of the world, notably North America, Australia and New Zealand.