This textbook provides students with an understanding of the concepts and techniques of qualitative and quantitative research work, grants, for research writing, report writing, data collection etc. It uses simple examples to demystify complex theories and methodologies about the research related queries. Therefore, I have included every aspect of research in the relevant chapters about the plant pathology discipline. This well organized book deals with the variety of research methods used in survey, variability in different aspects of plant pathogens, In vivo and In vitro study about management practices using different integration of chemicals, bio control agents, biochar etc. A handbook of research methodology is recommended for use in undergraduate and postgraduate student in plant pathology discipline.