The book comprises of several chapters which deals intensively and extensively with pests and diseases caused by insects, nematodes, fungi, viruses, bacteria, mollicutes and viroids. This immensely useful book is designed to update the knowledge of undergraduate and post-graduate students economic entomology, mycology, nematology and plant protection. This book provides detailed informations on the management of pests of almost all the tropical, sub-tropical and temperate horticulture crops. This book is intended to provide a clear overview of the principles and practices of pest management and should serve as a useful source of information to the scientists as well as to orchardists and farmers alike.