The scientific study of diseases in plants falls under the domain of plant pathology. Diseases can be caused by pathogens and due to environmental conditions. Plant disease management is an important aspect of plant pathology. It involves the study of pathogen identification, disease cycles, pathosystem genetics, etc. Control of plant diseases is vital for the production of food and reduction in agricultural use of water, land and fuel. It is achieved by cultivating plants that have been bred with high resistance to diseases. Other approaches of disease management include crop rotation, use of pathogen-free seed, control of field moisture, appropriate pesticide use, etc. The book studies, analyzes and upholds the pillars of plant disease management and its utmost significance in modern times. It strives to provide a fair idea about this discipline and to help develop a better understanding of the latest advances within this field. This book will assist researchers and students in this field.