This book provides an excellent overview of the new discoveries and approaches, and mode of action studies on natural product-based pest management agents. It covers a wide range of topics that include herbicides, insecticides, fungicides, algaecides, and molluscicides, as well as regulatory aspects governing natural products registration and commercialization. This book will benefit scientists, students, and faculty members in the fields of agronomy, plant biochemistry and physiology, natural products chemistry, entomology, chemical ecology, plant pathology, and related disciplines, as well as the organic farming sector and groups working on alternatives to synthetic pesticides.