This is a classic textbook on plant diseases: how to recognize them, treat them, and prevent them. It is thoroughly updated and revised by the addition of color plates, new references, and a larger, more easily accessible format. Plant Pathology, Fourth Edition, continues to be the most complete resource that students, faculty, and professionals turn to when in need of well-organized, essential information regarding the pathology of plants. Vital information, comprehensive coverage, and authoritative details make this the text that should be on the bookshelf of every plant scientist in need of a reference on plant disease. It is thoroughly revised and updated, including 30 per cent more new material. It includes the latest basic information on molecular techniques and biological control. It includes features such as: comprehensive in coverage; numerous excellent new diagrams and photographs that now also include a new section of color plates; new enlarged format; and a large variety of disease examples for instructors to choose for their course.