Synopsis Biological pest control is good alternative for avoiding pesticidal use which lead many serious problems like air and water pollution, health hazards, killing of beneficial organisms, pest resistance, pest resurgence, secondary pest outbreak etc. This book will add relevant knowledge on biological pest control. The book deals with various aspects of biological control of pests. More emphasis in this book has been given on the biological control in India and parasitoid biocontrol agents. The book will be a useful guide not only to the students, teachers and farmers but also to researchers for study and in the field to combat pests by biological means.