The book "Biopesticides: Use and Delivery" by Franklin Hall and Julius Menn provides a comprehensive overview of the latest advancements in the application of biopesticides for combating insects, plant diseases, and weeds. It brings together the expertise of leading scientists and practitioners who cover the science and technology of biofungicides, bioinsecticides, and bioherbicides, as well as detailed management protocols. The authors analyze the development, mode of action, production, and various delivery and formulation systems of these biological agents. Additionally, current registration requirements for biopesticides compared to conventional pesticides are discussed, including the associated timelines and costs. This book serves as a practical guide and comprehensive reference for scientists, practitioners, regulatory agencies, industry planners, and marketers involved in the development and application of biopesticides.