Weeds are the pioneer plants of disturbed soils and can adversely affect the use, economic value, and aesthetic aspect of the lands and waters they infest. Knowledge of the major mechanisms of weed survival is essential for developing effective methods of weed control to maximize the use and value of the environment. This well-researched text expounds on the interrelationships between weed species and the environment and discusses weed control programs. The first part of the book addresses weed control principles, including weed ecology, conservation tillage, and weed resistance and transgenic crop tolerance. The remaining chapters delve into herbicide families and weed control in selected crops.This third edition of Weed Science: Principles and Applications expands and updates selected topics presented in earlier editions and introduces new topics gaining prominence in weed science. The title of this edition has been expanded to include “and Applications” in recognition of newly added chapters concerned with weeds and weed control in selected crops. The subject matter is organized into three sections; they are Weed Control Principles (Chapters 1-11), Herbicide Families (Chapters 12–30), and Weed Control in Selected Crops: An Introduction (Chapters 31–46). Abundant diagrams, charts, and tables facilitate time-saving access to relevant information, including: Broadcast rate to band rate conversion tableListing of convenient areas, weights , and liquid measures Categories of herbicide mammalian toxicityListing of herbicides by trade name, active ingredient and manufacturerListing of herbicide premixes by trade name, active ingredients, and manufacturerListing of common and scientific names of weeds mentioned in the text