This book is an attempt to analyze the problems and suitable measures for the effective management of the insect pests, plant diseases, and plant parasitic nematodes. This book is an effort to bring together available information on the various plant protection aspects. The experts of the relevant fields have given a critical appraisal of the various aspects of crop protection facing climate change. This book is not only provides reference but also serves as a guide and inspiration for future research for development of modern agriculture and crop improvement. The Scientist, Professors, Scholars and Policy Makers dealing with crop protection and crop improvement will find this book very informative and useful.