This book presents detailed information on the imidazolinone herbicides, provided in chapters contributed by scientists and product development managers who work for American Cyanamid, categorized in sections covering chemistry, biology, metabolism and residues, environmental fate and product performance. Each chapter has its own bibliography, and appendices give (a) details of the chemical and physical properties, formulations and trade names of imazapyr, imazamethabenz-methyl, imazethapyr and imazaquin, and (b) the scientific and common names of species used in the text. There is a general bibliography of references for each of the above imidazolinone herbicides and a useful subject index. The individual chapters are abstracted separately.