This book is a compilation of the most challenging and significant chapters on the diagnosis and management of important bacterial, fungal, viral, viroid, phytoplasma, non parasitic diseases and various physiological disorders, in various crops. The chapters have been contributed by eminent plant pathologists, having wide experience of teaching and research on various crops with different types of diseases, which cause great economic losses. The book would be very useful for students, teachers and researchers of plant pathology. This book highlights recent advances made in the development of new types of resistance in host plants and alternative strategies for managing plant diseases to improve food quality and reduce the negative public health impact associated with plant diseases. Having entered into 21st century advancements in the Diagnosis of Plant Pathogens and Plant Disease Management need to be closely examined and adequately applied, so that newer challenges facing plant pathology could be adequately addressed in attaining food security for the growing population. Substantial advancements have been made in terms of expanding knowledge base of the biology of plant-microbial interactions, disease management strategies and application and practice of Plant Pathology. Application of molecular biology in Plant Pathology has greatly improved our ability to detect plant pathogens and in increasing our understanding, their ecology and epidemiology. Similarly, new technologies and resources have been evolved for the development of sustainable crop protection systems by different control strategies against various pests and pathogens that are important components of the integrated pest management programme. Natural products and chemical compounds discovered as a result of basic research and molecular mechanisms of pathogenesis have led to the development of "biorational" pesticides. Biological control has been found to be the most significant approach to plant health management during the twentieth century and promises using modern biotechnology, to be even more significant in the twenty-first century.

The book entitled "Biopesticides in Organic Farming : Recent Advances", describes critically reviewed, key aspects of organic farming and provides a unique and timely science-based resource for researchers, teachers, extension workers, students, primary producers and others around the world. This book is intended to be a unique and indispensable resource that offers a diverse range of valuable information and perspectives on biopesticides in organic agriculture. It has chapters on each and every aspect related with biopesticides in organic farming which are compiled by researchers and eminent professors at various universities across the globe. The wide spectrum information in various chapters with the addition of the terms related to organic farming and concept statements is presented in very concise manner. Features: This book is designed, as per course curriculum of different universities offering courses on Organic Farming, for undergraduate and post graduate students, researchers, university professors and extension workers. The first section provides, Overview of organic farming with special reference to biopesticides followed by the Principles of the applications of biopesticides in organic farming, Impact of Environmental factors on biopesticides in organic farming, Pesticides Exposure Impacts on Health and Need of Biopesticides in Organic Farming, and Role of nutrients in the management of crop diseases through biopesticides. The next section deals with the management of various crop diseases through biopesticides of bacterial, fungal, viral, and Insect sex hormone, Natural enemies and Integrated Pest Management, Biotechnological Trends in Insect Pests Control Strategy, Challenges in the popularization of Biopesticides in organic farming, Certification process and standards of organic farming and Marketing and export potential of organic Products. Information presented in an accessible way for students, professors, researchers, business innovators and entrepreneurs, management professionals and practitioners.

Viral Diseases of Field and Horticultural Crops details the fundamental and applied aspects of the viral diseases of field and horticultural crops. The book opens with a historical introduction to plant virology, important plant virologists, and landmarks. It continues with systematic coverage of viral diseases, their economic significance, disease symptoms, host range, mode of transmission, diagnostic techniques, geographic distribution, epidemiology, yield losses, and control and management of the disease. Contributions from an international group of virologists with a wide range of academic, research, professional, and specialized backgrounds in plant virology makes Viral Diseases of Field and Horticultural Crops a comprehensive and must-have resource for those engaged in the study and research of plant virology, microbiology, and plant pathology particularly viral diseases and their impact on field and horticultural crops.

Applied Plant Virology: Advances, Detection, and Antiviral Strategies provides an overview on recent developments and applications in the field of plant virology. The book begins with an introduction to important advances in plant virology, but then covers topics including techniques for assay detection and the diagnosis of plant viruses, the purification, isolation and characterization of plant viruses, the architecture of plant viruses, the replication of plant viruses, the physiology of virus-infected hosts, vectors of plant viruses, and the nomenclature and classification of plants. The book also discusses defense strategies by utilizing antiviral agents and management strategies of virus and viroid diseases. With contributions from an international collection of experts, this book presents a practical resource for plant virologists, plant pathologists, horticulturalists, agronomists, biotechnologists, academics and researchers interested in up-to-date technologies and information that advance the field of plant virology.

The book has been divided conveniently into chapters dealing with survey, diagnosis, characterization and management of the viruses infecting papaya (Carica papaya L.). A detailed outline of the viral diseases of papaya is given for ready reference. Described the various types of symptoms appearing on papaya due to virus(es) infection. Besides, this book describes the transmission, dilution end point, thermal inactivation point, longevity in-vitro, isolation and purification of the virus, serological and molecular characterization, electron microscopy. Methodologies of DAC-ELISA, RT-PCR for detection of papaya ring spot virus (PRSV) were also described. This book deals with the eco-friendly management of the viral diseases of papaya though antiviral agents of plant origin. Role of Boerhaavia diffusa and Clerodendron aculeatum against viral diseases have been described. Identification of sources of resistance is mentioned in this book. I feel that this book would be most useful for researchers, scientists, teachers and students engaged in the area of plant virology.