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.

This open access book will provide an introduction to forest entomology, the principles and techniques of forest insect pest management, the different forest insect guilds/feeding groups, and relevant forest insect pest management case studies. In addition to covering 30% of the earth, forest ecosystems provide numerous timber and non-timber products that affect our daily lives and recreational opportunities, habitat for diverse animal communities, watershed protection, play critical roles in the water cycle, and mitigate soil erosion and global warming. In addition to being the most abundant organisms in forest ecosystems, insects perform numerous functions in forests, many of which are beneficial and critical to forest health. Conversely, some insects damage and/or kill trees and reduce the capacity of forests to provide desired ecosystem services. The target audience of this book is upper-level undergraduate and graduate students and professionals interested in forest health and entomology.

This open access volume presents a comprehensive account of all aspects of biological invasions in South Africa, where research has been conducted over more than three decades, and where bold initiatives have been implemented in attempts to control invasions and to reduce their ecological, economic and social effects. It covers a broad range of themes, including history, policy development and implementation, the status of invasions of animals and plants in terrestrial, marine and freshwater environments, the development of a robust ecological theory around biological invasions, the effectiveness of management interventions, and scenarios for the future. The South African situation stands out because of the remarkable diversity of the country, and the wide range of problems encountered in its varied ecosystems, which has resulted in a disproportionate investment into both research and management. The South African experience holds many lessons for other parts of the world, and this book should be of immense value to researchers, students, managers, and policy-makers who deal with biological invasions and ecosystem management and conservation in most other regions.

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.

Covering all aspects of practical plant nematology in subtropical and tropical agriculture, the third edition of this definitive global reference work is fully revised and in full colour throughout. It covers the presence, distribution, symptomology and management of all economically important plant parasitic nematodes damaging the world's major food and cash crops. This includes: rice, cereals, solanum and sweet potatoes (and other root and tuber crops), food legumes, vegetables, peanut, citrus, fruit tree crops, coconut and other palms, coffee, cocoa, tea, bananas, sugarcane, tobacco, pineapple, cotton, other tropical fibres, spices and medicinal plants. New content for this edition includes: - A chapter on nematode soil biodiversity and soil health. - Reflections on the future impact of nematodes and nematology on food security. - The importance of climate change, emerging threats, and new management technologies for large and small subsistence growers. - Significant revisions to the IPM chapter and chapters on vegetables, citrus, legumes, tuber crops, cotton, peanut and banana where major advances in nematode management have occurred. This book is highly illustrated, with up-to-date practical guidance on methods of extraction, processing and diagnosing of different plant and soil nematodes and on integrated pest management. It remains an invaluable resource for those studying and working in the area of crop protection.

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.

Plant viruses are significant as they affect our food supply and are capable of rapidly spreading to new plant species, so a comprehensive study of plant viruses is important in understanding their pathogenesis and prevention. This book focuses on the plant virus evolution, their molecular classification, epidemics and management. The key features in the book includes genome organization, translation and replication, virus-coded proteinases, structure of virus particles, cell receptors and host range, the RNA polymerase, quasispecies dynamics and virus evolution, and its natural habitats.

Novel Aspects of Insect-Plant Interactions Edited by Pedro Barbosa and Deborah K. Letourneau Focusing on three trophic levels, this study widens the current understanding of the ecological interactions between plants, herbivores, and their parasitoids and predators. Emphasized are the mediating effects of plant-derived allelochemicals on those interactions. The book also covers microorganisms as mediators of intertrophic and intratrophic interactions; theory and mechanisms: plant effects via allelochemicals on the third trophic level; and key roles of plant allelochemicals in survival strategies of herbivores. 1988 (0 471-83276-6) 362 pp. Plant-Animal Interactions Evolutionary Ecology in Tropical and Temperate Regions Edited by Peter W. Price, Thomas M. Lewinsohn, G. Wilson Fernandes and Woodruff W. Benson An outgrowth of an international symposium on Evolutionary Ecology of Tropical Herbivores held at UNICAMP, Brazil, this unique collaborative effort from leading scientists worldwide is the first comparative analysis of the existing ecological systems of temperate and tropical regions. In-depth and timely, the book's manifold analyses includes a discussion of tropical and temperate comparisons; mutualistic relationships between plants and animals; antagonistic relationships between plants and animals; plant-butterfly interactions; specificity in plant utilization; and community patterns in natural and agricultural systems. Amply illustrated with 150 detailed graphics, the book provides a fascinating visual tour of the flora and fauna described. 1991 (0 471-50937-X) 639 pp. Integrated Pest Management Systems and Cotton Production Edited by Raymond E. Frisbie, Kamal M. El-Zik and L. Ted Wilson This work sheds light on the link between the thriving U.S. cotton crop and integrated pest management. It offers a unique theoretical and conceptual framework for studying the cotton-IPM system. Other relevant issues such as the development and use of pest models, quantitative sampling principles in cotton IPM, economic injury levels and thresholds for cotton pests, and strategies and tactics for managing weeds, plant pathogens, nematodes, and insects are also described. Covering every facet of IPM technology, this is a significant contribution to the literature of pest management. 1989 (0 471-81782-1) 437 pp.

Asian citrus psyllid (ACP), Diaphorina citri, is an insect pest which transmits a bacterium, Candidatus Liberibacter asiaticus (CLas), primarily through feeding in newly emergent foliage of citrus trees. This pathogen causes a disease known as Huanglongbing (HLB), or citrus greening, which has become the most debilitating and intractable disease in citrus crops. This book, written by a team of experts on the Asian citrus psyllid, gathers together everything currently known about the biology and ecology of this important pest species, examines the transmission and acquisition processes of the pathogen, and looks at current management practices and their effectiveness. The potential for new, innovative management techniques are also described, along with the economic implications of managing this rapidly establishing disease. This book: Covers all aspects of Asian citrus psyllid biology and ecology for the first time in one place. Examines new, innovative management practices and assesses their effectiveness. Discusses the vector-pathogen relationship in detail. Explains the economics of controlling this devastating pest. This title is essential reading for all researchers involved in the management and control of Asian citrus psyllid, extension agents, and pest management consultants. It will also be of great use to graduate students in applied entomology and related disciplines.

"Plant Virus-Host Interaction" contains cutting-edge research in plant molecular virology, including pathogenic viroids and transport by insect vectors, interference with transmission to control viruses, and synergism, with pivotal coverage of RNA silencing and the counter-defensive strategies used by viruses to overcome the silencing response in plants.

With a clear focus on plant virus evolution, including quantitative and population genetics, "Plant Virus-Host Interaction" provides insights on the major factors favoring disease emergence, such as genetic change in pathogen and host populations and changes in host ecology and environment. The book also examines socioeconomic implications of widespread plant viral agents. Contributions from leading experts around the globe provide varied perspectives, while comprehensive coverage ensures a complete look at this exciting field.
Covers the emergence of new viral diseasesProvides molecular approaches for virus-host interactionHighlights RNA silencing and counter-defensive strategiesDiscusses socioeconomic implications of viral spread and mitigation techniques

Phytoplasma Diseases of Major Crops, Trees, and Weeds is the second volume in a three-volume series dedicated to the analysis of plant pathogenic phytoplasmas across Asia. With a close look into the different types of plants affected by phytoplasma, the book offers management strategies to develop resistant plant strains. Phytoplasma diseases pose serious economic losses in many Asian countries, for which there is very little awareness within society. The chapters in Volume 2 comprehensively review predominant plant species and how they are impacted by phytoplasma diseases, providing information on host-pathogen interaction, characterization, and genetic diversity. The Phytoplasma Diseases in Asian Countries series will be an essential read for students, researchers and agriculturalists interested in plant pathology. Volume 2 will be of particular interest to those needing to access the latest information on plant management and successful plant breeding strategies.

This volume of "Advances in Virus Research "focuses on mycoviruses. The authors and reviews represent the most current and cutting-edge research in the field. A broad range of research is presented from research experts.
Key features:

* Contributions from leading authorities * Informs and updates on all the latest developments in the field

This book describes interactions of plant viruses with hosts and transmission vectors in an agricultural context. Starting with an overview of virus biology, economics and management, chapters then address economically significant plant diseases of tropical and subtropical crops. For each disease, symptoms, distribution, economic impact, causative virus, taxonomy, host range, transmission, diagnostic methods and management strategies are discussed.

IPM Systems need to be developed for agriculture to be economically and environmentally strong, in production, storage and food processing. Although the concept and philosophy of integrated pest management have been largely accepted for some time, its implementation is complex and faces numerous potential problems. If IPM is to enjoy widespread approval and adoption, it must be clearly defined and economically and socially acceptable. The topics covered in this book include a range of topics, such as risk-benefit analysis, transgenic crops in IPM and consumer response to IPM.

Diversity, Distribution, and Current Status is the first volume in a three-volume series dedicated to the analysis of this important group of plant pathogens across Asia with a particular focus on geographic distribution. This book offers updated data on the most prevalent phytoplasma diseases specific to each region. Phytoplasmas are emerging plant pathogens all around the world, causing significant economic losses to crops, as well as affecting international trade. The chapters in Volume 1 look closely at different countries and regions across Asia, providing data on country-wide distribution, phytoplasma groups, insect vectors and transmission. The Phytoplama Diseases in Asian Countries series will be an essential read for university students, researchers and agriculturalists interested in Plant Pathology. Volume 1 will be of particular interest to those needing the latest data on the distribution and transmission rates specific to the various regions of Asia.

The book presents comprehensive information on fundamental, and applied knowledge for developing varieties resistant individually as well as to all the major pathogens of crucifers, such as Albugo, Alternaria, Erysiphe, Hyaloperonospora, Plasmodiophora, Leptosphaeria, Sclerotinia, Turnip mosaic virus, Verticillium, and Xanthomonas through the use of latest biotechnological approaches including identification of R genes and their incorporation into agronomically superior varieties. The chapters include the information's viz., principles of host resistance, identification of R-genes sources, inheritance of disease resistance, host resistance signaling network system to multiple stresses. The book also covers transfer of disease resistance, and management of disease resistance. Standardized, reproducible techniques are also included for the researchers of cruciferous crops for developing resistant cultivars. The book deals with the gaps in understanding, knowledge of genomics, and offers suggestions for future research priorities in order to initiate the advance research on disease resistance. This book is immensely useful to the researchers especially Brassica breeders, teachers, extension specialists, students, industrialists, farmers, and all others who are interested to grow healthy, and profitable cruciferous crops all over the world.

The book is a comprehensive compilation of applied knowledge for developing resistant varieties to all the major biotrophs, hemibiotrophs and necrotrophs pathogens of crucifers through the use of latest biotechnological approaches. The book includes, multi-component resistance, incorporation of non-host resistance gene, function of particular gene in resistance, expression of age related resistance, enhanced gene resistance, sources of alternative gene which enhance disease resistance, through the use of latest biotechnical approaches like proteomics, omics, transcriptomics and metabolomics. The book also explores the molecular basis of disease resistance, its biometabolomics activities in response to infection and interaction by the various biotrophs, hemibiotrophs and necrotrophs pathogens. The identification of R genes and its incorporation into agronomically superior varieties through use of molecular mechanisms is also explained. This compilation is immensely useful to the researchers especially Brassica breeders, teachers, extension specialists, students, industrialists, farmers, and all others who are interested to grow healthy, and profitable cruciferous crops all over the world.

Viruses are a huge threat to agriculture. In the past, viruses used to be controlled using conventional methods such as crop rotation and destruction of the infected plants but now there are more novel ways to control them. This volume focuses on natural and engineered virus resistance, the two major strategies used for crop protection.

* Contributions from leading authorities * Informs and updates on all the latest developments in the field

This volume discusses traditional and current techniques that are successfully used to diagnose plant viruses and study molecular plant-virus interactions. The chapters in this book cover topics such as in vivo detection of double-stranded RNA, developing rice mutant using CRISPR-Cas9-based technology, protein-protein interaction assays, purification and transfection of protoplasts, protocols for gene silencing, and transmission electron microscopy. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Cutting-edge and practical, Plant Virology: Methods and Protocols is a valuable resource for plant pathologists, microbiologists, virologists, graduate students, and teachers who are interested in learning more about the developments in plant virology research.

This book provides a comprehensive monograph of the family Humiraceae. It includes information on economic botany, conservation, phylogenetic relationships, taxonomic history, ecology, cytology, anatomy, and phytochemistry, among other topics. This volume is illustrated with line drawings, black and white photographs, and distribution maps. It was written by the world-leading authority on this plant group and contains a total of eight genera, 65 species, and 15 infraspecific taxa, with two new species described. This work is volume 123 in the Flora Neotropica book series (Lawrence M. Kelly, Editor-in-Chief). Flora Neotropica volumes provide taxonomic treatments of plant groups or families growing in the Americas between the Tropic of Cancer and the Tropic of Capricorn.

This book offers a range of environmentally benign molecular mechanisms which are safer alternative strategies for effective insect pest management. In modern era of biotechnology, there has been much advancement in the field of molecular biology, where many more techniques have evolved which can be helpful in the field of pest management too. Plant resistance, development of transgenic plants, and many more techniques are being considered the panacea to pest problems. On the other hand, there are wide spread concerns of the safety of biotechnological interventions with nontarget organisms including humans. While the world stands divided on the ethical issues of these approaches and the many safety concerns, scientists believe that well thought of biotechnological interventions are probably the only safest ways possible for reducing pest attacks on crops. It explores various techniques and aspects related to molecular pathways for crop pest control. This book is a useful resource for postgraduate students and researchers of agriculture sciences, plant pathology and plant physiology. It is also useful for policy planners in agriculture.

This book brings together specialized information on modern aspects of applied microbiology in pest management. In the last few decades, the humans have witnessed major advancements in Life Sciences, as a result several new and powerful tools and techniques have evolved. This has led to great advancements in microbial nutrition, genetics and their application in different fields. In modern era of biotechnology, the microbes have provided solutions to many of the human problems and necessities and thus serve as human and farmers' friends. The microbes have proved to be successful tools for the pest management. Similarly, there has been much advancement in the field of molecular biology, where many more techniques have evolved which can be helpful in the field of pest management too. Plant resistance, development of transgenic plants, and many more techniques are being considered the panacea to pest problems. On the other hand, there are wide spread concerns of the safety of these microbial and biotechnological interventions with nontarget organisms including humans. While the world stands divided on the ethical issues of these approaches and the many safety concerns, scientists believe that well thought of microbial and biotechnological interventions are probably the only safest ways possible for reducing pest attacks on crops. This is useful read for postgraduate students and teachers, plant protection practioners across the world and also useful for policy planners.

This open access book in the field of plant pest detection shows a constant demand in development and improvement of fast and reliable detection tools, especially for high-priority pests. This open access book describes and summarizes the whole process of the organization of test performance study (TPS) for these tools. The outcome of TPS, obtained through the evaluation of the performance of one or more diagnostic tests by several laboratories on defined samples, is the finding of the best performing test/s for particular pest and for specific uses. Nowadays the intensification of worldwide trade and associated controls increases the need for quality assurance accreditation and harmonization of laboratories practices. Therefore, such studies are very important, but, non-existent. Considering those facts, our goal was to develop guidelines, by using the data and experiences of involved partners, for further TPS in the field of plant health. Developed guidelines could be easily transferable to other microbiology fields.

This volume sits at the cross-roads of a number of areas of scientific interest that, in the past, have largely kept themselves separate - agriculture, forestry, population genetics, ecology, conservation biology, genomics and the protection of plant genetic resources. Yet these areas also have a lot of common interests and increasingly these independent lines of inquiry are tending to coalesce into a more comprehensive view of the complexity of plant-pathogen associations and their ecological and evolutionary dynamics. This interdisciplinary source provides a comprehensive overview of this changing situation by identifying the role of pathogens in shaping plant populations, species and communities, tackling the issue of the increasing importance of invasive and newly emerging diseases and giving broader recognition to the fundamental importance of the influence of space and time (as manifest in the metapopulation concept) in driving epidemiological and co-evolutionary trajectories.

This volume provides a collection of molecular protocols detailing the most common and modern techniques on fusarium wilt. Chapters guide readers through methods on initial isolation, molecular-based identification, genome characterization, generation of mutants, and characterization of interactions with other organisms including host plants. Written in the format of the highly successful Methods in Molecular Biology series, each chapter includes an introduction to the topic, lists necessary materials and reagents, includes tips on troubleshooting and known pitfalls, and step-by-step, readily reproducible protocols. Authoritative and cutting-edge, Fusarium wilt: Methods and Protocols aims to be a valuable resource for mycologists, plant pathologists, microbiologists, geneticists, and other scientists that have an interest in members of the Fusarium oxysporum species complex or closely related fungi.