Mohammad Ansar, PhD, is an Assistant Professor at the Department of Plant Pathology of Bihar Agricultural University (BAU), India. He established the Plant Virology Laboratory at BAU and acts as a coordinator of virology research. Dr. Ansar is also associated with a program in which he actively performs the research work of the All-India Coordinated Researches on vegetable crops. He has been the author or coauthor of many articles in research journals, book chapters, and conference papers. He has recently published an edited book, The Phytopathogen: Evolution and Adaptation.Abhijeet Ghatak, PhD, is an Assistant Professor of Plant Pathology at Bihar Agricultural University (BAU), India. He is a member of a core research group and research monitoring committee at the BAU, helping to provide appropriate direction and to prioritize research. Dr. Ghatak is also engaged in undergraduate and postgraduate teaching, covering courses related to principles of plant pathology, field and medicinal crop diseases, epidemiology, and forecasting.

• Preface1. Phytophtora Blight in Potato: A Challenge Ahead in the Climate Change ScenarioMehi Lal, Saurabh Yadav, V. K. Dua, and Santosh Kumar2. Pathosystem in Cowpea: An OverviewSantosh Kumar, Md. Erayya, Nadeem Akhtar, Mahesh Kumar, and Mehi Lal3. A Population Genetics Perspective of Ecology and Management of Phytophthora spp. Affecting Potato, Tomato, and Pointed Gourd in IndiaSanjoy Guha Roy4. Phytoplasma in Vegetable Pathosystem: Ecology, Infection Biology, and ManagementNagendran Krishnan, Shweta Kumari, Koshlendra Kumar Pandey, Awadhesh Bahadur Rai, Bijendra Singh, and Karthikeyan Gandhi5. Ralstonia solanacearum: Pathogen Biology, Host-Pathogen Interaction, and Management of Tomato Wilt DiseaseBhupendra S. Kharayat and Yogendra Singh6. Nematodes: Pest of Important Solanaceous Vegetable Crops and Their ManagementAjay Kumar Maru, Tulika Singh, and Poonam Tapre7. Effect of Fungal Pathogen on Physiological Function of VegetablesNishant Prakash, Erraya, Srinivas Raghvan, and Supriya Gupta8. Foliar Fungal Pathogens of CucurbitsAshok Kumar Meena, Shankar Lal Godara, Prabhu Narayan Meena, and Anand Kumar Meena9. Yellow Vein Mosaic of Okra: A Challenge in the Indian SubcontinentAmit Kumar, R. B. Verma, Chandan Roy, and Randhir Kumar10. Disease Dynamics and Management of Vegetable PathosystemsAbhijeet Ghatak11. Mechanism of Microbial Infection in Vegetables DiseasesVinod Upadhyay and Elangbam Premabati Devi12. Virus Diseases: An Inimitable Pathosystem of Vegetable CropMohammad Ansar, Aniruddha Kumar Agnihotri, and Srinivasaraghvan A. 13. Begomovirus Diversity and Its Management in Leguminous Vegetables and Other HostsMuhammad Naeem Sattar and Zafar Iqbal14. Biology and Molecular Epidemiology of Begomovirus Infection on Cucurbits Bhavin S. Bhatt, Fenisha D. Chahwala, Sangeeta Rathore, Bijendra Singh, and Achuit K. Singh15. Diversity of Potyviruses and Their Extent in Vegetable PathosystemBhavin S. Bhatt, Sangeeta Rathore, Brijesh K. Yadav, Fenisha D. Chahwala, Bijendra Singh, and Achuit K. SinghM16. Soil-Borne Microbes: A Culprit of Nursery’s Juvenile PlantsPuja Pandey and Bindesh Prajapati17. Biological Control of Postharvest Diseases in VegetablesPardeep Kumar and R. K. Singh18. Postharvest Handling, Diseases and Disorders in Bulb VegetablesSangeeta Shree and Amrita Kumari19. Management of Soil-Borne Diseases of Vegetable Crops Through Spent Mushroom SubstrateDurga Prasad and Srinivasaraghavan A. Index