The present book is a compilation of latest information which provides an overview of concise and point wise updated information on entomology. It covers almost all subject related to Entomology viz., Systematics, Morphology, Embryology, Internal Anatomy and Physiology, Ecology, Biological Control, Chemical Control and Toxicology, Host Plant Resistance, Innovative Approaches in Pest Control, History of Integrated Pest Management, Pesticide Application Equipments, Pests of Field Crops and their Management, Pests of Horticultural Crops and their Management, Pests of Stored Products and their Management, Arthropod Vectors of Plant Diseases, Honey Bees and Beekeeping, Silkworms and Sericulture, Lac Insect, Other Useful Insects, Statistics and Computer Related terminology is provided at the end of the book. Multiple choice questions, fill in the blanks and true/false types questions embedded at the end of each chapters will enable the readers to up-date their knowledge quickly and understanding of subject matter in depth. Every possible effort has been made to accommodate previous year questions from various competitive examinations. This book is designed to serve as a handy guide for students, teachers, and researchers engaged in Agriculture. Special emphasis has been given to the aspirants appearing for various competitive examinations like, post-graduate entrance exam, SAUs Entrance, Ph.D., Junior Research Fellowship (JRF), Senior Research Fellowship (SRF), Agricultural Research Service (ARS), ICAR-National Eligibility Test (NET), SET, Civil Services, and various agriculture related competitive examinations at State and national level.'