This the fifth edition of the author's classic and comprehensive text providing exhaustive pedagogical coverage of fungal, viral, bacterial, nematode and other plant diseases, and their associated epidemiology. It also covers the genetics of resistance and modern management of plant disease. This book continues to be the most exhaustive textbook and complete resource that includes well-organized, essential information regarding the pathology of plants. The chapters have been revised to cover the explosive growth of knowledge in plant pathology that continues to accumulate. It includes the latest information on molecular techniques and biological control in plant diseases; Numerous excellent diagrams and photographs; A large variety of disease examples.