Biocontrol has been generally shown to be safe to plants, animals, humans and the environment. The book is intended to reports on biotechnologies dealing with the elucidation and use of genes or gene products for the enhancement of biological control agents. Additionally, interest in biological control has increased over recent decades due to an increase in number of arthropod pests that developed resistance to one or more pesticides leaving growers to search for alternative management strategies. This book summarizes the efficacy, advantages and safety of using biological agents to suppress and control damage done to crops by insects.