This book has in total 11 chapters of which, some are related to the thrusts caused by the phytonematodes and their managements in cereals, forage, pulses, seed spices, horticultural and plantation crops. In some of these, the protective cultivation and interaction between nematode and phytopathogens have also been dealt. Coverage of this book is with recent literature pertinent to the related topics and their compilation also made by subject learned scientist. It is to hope that this book will be serving as a good reference book to the subject related researchers and scientists.