Plant Disease Diagnosis and Management is a comprehensive academic resource that explores the scientific principles, diagnostic methodologies, and management strategies used to understand and control plant diseases in modern agriculture. Plant diseases continue to pose serious threats to global food security, crop productivity, environmental sustainability, and agricultural economies. This book provides an integrated understanding of the biological, ecological, molecular, and technological aspects of plant pathology, offering readers both theoretical knowledge and practical applications for effective disease diagnosis and management.

The book begins with the foundations of plant pathology and disease development, introducing the concepts of host–pathogen interactions, disease cycles, infection processes, and environmental influences on disease progression. It examines the etiology and diversity of plant pathogens, including fungi, bacteria, viruses, nematodes, phytoplasmas, and other disease-causing agents that affect agricultural and horticultural crops worldwide. Special emphasis is placed on symptomatology and diagnostic principles, helping readers understand visible disease symptoms, pathogen signs, and the importance of accurate disease identification.