Pathogen resistance to fungicides has become a challenging problem in the managing of crop diseases and has threatened the performance of some highly potent commercial fungicides. Worldwide, resistance to more than one hundred different active ingredients has been reported. This book compiles information on fungicide resistance over the past three decades on the status, development, and processes involved in the build-up of resistance in pathogens to different groups of fungicides, while also suggesting various measures for managing this problem.

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.

This volume offers a comprehensive coverage of the general principles and recent advances in fungicide resistance. It describes the development, mechanisms, monitoring, and management of resistance and covers the most important group of fungicides that have caused resistance on various crops. An historical review of fungicide resistance over the past 40 years sets the scene for up-to-date basic information on mode of action, as well as the genetics, mechanisms, and evolution of resistance. Monitoring for resistance, including the latest developments in molecular diagnostics, moves readers into the practical aspects of resistance management, which is dealt with through a series of case studies outlining fungicide-use strategies on several key crops. The chapters reflect the experience of authors internationally recognised for their significant contributions to fungicide resistance research. The majority of crop diseases are caused by fungal pathogens, and disease control relies heavily on chemically synthesized fungicides. However, modern fungicides often encounter the problem of resistance development in target pathogens. Thus pathogen resistance to fungicides is an important factor that causes loss of yield and quality of crops. It often threatens biosecurity through the decrease of fungicide efficacy in the fields. To manage fungicide resistance successfully will require the promotion of integrated disease management, involving not just chemical fungicides, but also host plant resistance, agronomic factors, and reliable biological control agents where these are available. Well referenced throughout, the book offers a comprehensive account of resistance, which will be useful as a source of material for lecturers and for both industrial and academic scientists involved in fungicide resistance research. It is also a valuable sourcebook for students.

Fungicides for Field Crops provides an overview of the current knowledge of fungicides and their use on field crops. This comprehensive book, which includes the contributions of 40 professionals from 20 universities and other organizations, combines past knowledge about fungicides with recent developments in the realm of field crop fungicides. Fungicides for Field Crops highlights the use of fungicides as key tools in the management of important diseases of field crops. Management is presented as a decision-making process--one in which factors as diverse as weather conditions and economics must be considered. Having a more complete understanding of fungicides will inform that decision making and help determine when fungicides should be included as part of a management plan. Parts I, II, and III establish a foundation of knowledge about fungicide use, addressing basic terms and concepts, key factors in decision making, and concerns for fungicide stewardship, respectively. Part IV presents details about using fungicides to manage diseases of 16 field crops. Each crop is treated in a separate section that begins with a discussion of general issues of foliar application and seed treatment and ends with an inclusive table identifying diseases of that crop, including what causes them and how fungicides may be used to treat them. 131 color photographs illustrate disease symptoms and show techniques and enhance the key concepts described in the text.

Plant pathogenic fungi cause damage to the world's crop production that is valued at many millions of dollars annually. The main means of control is through chemical fungicides, even though these may now be used as part of a more general strategy of integrated pest management, including biological control. New fungicides continue to be developed by agrochemical companies, especially when resistance from pathogens develops to existing formulations. There is therefore a continuing need for information on fungicides in crop protection. This book provides a concise and balanced review of fungicides and their application to crop protection. An unusual feature is the provision of a perspective from the manufacturing industry, including discussion of the global market for fungicides, and the discovery and development process. The perspectives of the farmer and the consumer are also considered. Other major topics addressed include fungicide mode of action, resistance, legislation governing usage and the use of biotechnology and natural products. The book is aimed at advanced undergraduates and graduate students in plant pathology, as well as advisors, extension workers and new recruits to the agrochemical industry.

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 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. Plant protection products play a crucial role in maintaining adequate supplies of high quality, affordable food. Without these products to keep weed, pest and disease pressures in check, crop yields would fall by around a third. Plant protection products are also widely used outside crop production, for example in maintaining the quality of gardens, golf courses and sports pitches, and ensuring the safety of our railways and roads. The plant protection products are lifesaving medicines for plants. When attacked by disease or pests, a plant's natural response is to produce its own chemical protection. Man-made pesticides are only used when a plant's own chemical defenses do not work well enough. But like human and veterinary medicines, plant protection products can pose some risks if they are not used with due care. Their registration and use is therefore strictly regulated and controlled.