A CHOICE Recommended title 2025 This textbook provides a comprehensive overview of the principles, methods and applications of chemical ecology, covering such topics as chemical signalling, predator-prey interactions, host plant selection and chemical defence. The book takes the reader through the historical development of the discipline to current state-of-the-art research, delving into recent findings on the role of chemical ecology in conservation and management and exploring how the field may contribute to future innovations in ecological science. A chapter is dedicated to the techniques that have been used in chemical ecology and some success stories. Chemical Ecology: Insect-Plant Interactions is an important resource for advanced undergraduates and postgraduate researchers as well as practitioners in this interdisciplinary field. The book's layout aligns with the curriculum of chemical-ecology-related disciplines, progressing from basic fundamental principles to a more advanced level. Those studying and researching in ecology, entomology, plant biology and biochemistry will find it invaluable as well as those practising in areas such as agriculture, forestry and pest management.