The in-vitro Phytopathology is a compendium of practical protocols of economically import plants such as cereals, pulses, vegetables, fruits, and cash crop.The book cover all basic concepts of techniques and methods of study of diseased plant material in the laboratory. This is a unique book of the world which covers laboratory diagnosis of diseased plant material and study of occurrence of respective pathogen inside the host tissue, sporulation and symptomatology of host and pathogen is to be cleared with the techniques given in the compendium of plant pathology of economically important crops. All the basic concepts of study of infected plant material in the laboratory is explained in simple language and clearly to creat intrest of students in the subject of plant pathology.The book include basic methods of study of plant diseases and their respective pathogens in the laboratory. This book will be an extremely important source for the undergraduate & post graduate students, of Horticulture, Agriculture, Plant Pathology and research scholars. Scientists of every corner of the world. The book presents the updated technology of study of plant pathogen in the laboratory.