Viruses that infect plants are responsible for reduction in both yield and quality of crops around the world, and thus are of great economic importance. This has provided the impetus for the extensive research into the molecular and cellular biology of these pathogens and into their interaction with their plant hosts and their vectors. However, interest in plant viruses extends beyond their ability to damage crops. Many plant viruses - for example, tobacco mosaic virus - have been used as model systems to provide basic understanding of how viruses express genes and replicate. Others permitted the elucidation of the processes underlying RNA silencing, now recognized as a core epigenetic mechanism underpinning numerous areas of biology. This book attests to the huge diversity of research in plant molecular virology. Written by world authorities in the field, the book opens with two chapters on the translation and replication of viral RNA. Following chapters cover topics such as viral movement within and between plants, plant responses to viral infection, antiviral control measures, virus evolution, and newly emerging plant viruses. The book concludes with two chapters on biotechnological applications of plant viruses. Throughout, the focus is on the most recent, cutting-edge research, making this book essential reading for everyone working with plant viruses.

Acquiring knowledge about different aspects of entomology is of vital importance in adopting appropriate measures for the control of pests and also for utilizing the beneficial insects for the benefits of man. This book deals with the basic concepts of entomology, which include: - Morphology, anatomy, adaptation and classification of insects, especially the parasitic ones, which do harm to plants, livestock and even to man. Economic role of insects with special reference to productive ones such as, honeybee, silk worm and lac insect as well as beneficial ones such as, parasitoids, predators pollinators etc. Pest management that covers usage of various plant protection chemicals, plant protection equipments, toxicology of pesticides, compatibility of pesticides etc. Non-insect pests viz., nematodes and mites, their economic role and control measures. The text is substantiated with many fine, hand-drawn figures and illustrations that will help better understanding of the text. The book, which is primarily intended for the undergraduate students of agriculture, will be of use to the postgraduate students of agriculture, to the officials working in the department of agriculture, especially those involved in plant protection work and also to the elite public who are interested in scientific agriculture.

The book has been written as Text Book for Undergraduate as well as Post Graduate students covering major aspect of horticultural diseases.

This Laboratory Manual has been designed for students for easy understanding of basic plant pathological laboratory techniques related with Isolation of pathogen. Preservation of disease sample, Demonstration of Koch.s postutlates. Study of different groups of fungicides and antibiotics. Preparation of fungicides. Methods of application of fungicides. Bio-assay of fungicides, Bio control of plant pathogens and Identification of some important fungal pathogens. The book is fully colour book with digitized images have been made to identify diseases and pathogens with explanations of new terminologies to enhance students understanding about the subject. The book will be useful to beginners, students, instructors, scientists and research workers in the field of Plant Pathology and Agricultural Microbiology.

Crop diseases are known to be caused by various abiotic and biotic agents. Among the biotic agents, microbial plant pathogens u fungi, bacteria, phytoplasmas, viruses and viroids u accounts for significant quantitative and qualitative losses in agricultural and horticultural crops. It is essential to have adequate knowledge of various aspects of these plant pathogens. Information on precise identification of microbial plant pathogens, process of disease development, epidemiology, assessment of losses due to diseases, principles of disease management, their applications for containing the diseases and the possible ways of integrating the practices is required to develop and enhance the effectiveness of disease management systems suitable for different ecosystems. Basic plant pathological methods provided in the appendix and glossary of plant pathological terms presented in this book will help the students to have a clear understanding of the subject. Graduating students, researchers and teachers desirous of updating the information on different aspects of microbial plant pathogens and the diseases caused by them, will find this book to be useful.

Plant Disease Management requires a basic knowledge about the disease causing organism, whether fungi, bacteria, viruses, Mycoplasma or any other microorganisms. In this book 'Illustrated Plant Pathology--Basic Concepts', the authors have covered: Detailed account of the various pathogenic microorganisms responsible for causing diseases. Their classification, life cycle, mode of survival, spread and infection, factors responsible for epidemics, physiological specialization of pathogens. Disease surveillance, assessment of disease intensity, methods of disease control, plant protection chemicals, plant protection appliances and other aspects, which may go a long way in adopting suitable measures to combat the diseases. Management of seed-borne, soil borne and foliar diseases, use of plant products in disease management and biological approaches in disease management have also been dealt with. Numerous illustrations have also been given to make the text easily understandable. Though intended for the students of Agriculture, the book will be highly useful for the people working in the Department of agriculture and to the elite public who are interested in scientific agriculture.

Of the global population of more than 7 billion people, some 800 million do not have enough to eat today. By 2050, the population is expected to exceed 9 billion. It has been estimated that some 15% of food production is lost to plant diseases; in developing countries losses may be much higher. Historically, plant diseases have had catastrophic impact on food production. For example: potato blight caused the Irish famine in 1845; brown spot of rice caused the Great Bengal Famine of 1943; southern corn leaf blight caused a devastating epidemic on the US corn crop in 1970. Food security is threatened by an ongoing sequence of plant diseases, some persistent for decades or centuries, others more opportunistic. Wheat blast and banana xanthomonas wilt are two contrasting examples of many that currently threaten food production. Other emerging diseases will follow. The proposed title aims to provide a synthesis of expert knowledge to address this central challenge to food security for the 21st century. Chapters [5] and [11] are available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.