This work investigates the biological mechanisms and evolutionary strategies plants employ to defend their foliage against herbivory from both invertebrate and vertebrate threats. Edward E. Farmer, a researcher in plant molecular biology, synthesizes data from field observations and controlled laboratory experiments to construct a comprehensive framework of plant defense systems. The text examines how plants perceive, signal, and respond to physical and chemical attacks to ensure survival.

Experts recognize this as a specialized technical resource for students and researchers in plant biology and ecology. Readers frequently note the academic density of the prose and the rigorous integration of experimental data throughout the chapters.