This new compilation focuses on 386 of the most commonly used pesticides recently registered by the EPA. The structural and molecular formulas are listed for each chemical along with its Chemical Abstracts Registry Number (CAS RN) and, when available, its number in the Merck Index (Eleventh Edition). This invaluable reference provides the various English and foreign chemical names, trivial names, synonyms, and trade names for each pesticide. A handy chemical name index also presents this information in a readily accessible format. The pesticide's physical properties are summarized and data pertaining to the compound's acute toxicity in various species are given. This data has been drawn from the Registry of Toxic Effects of Chemical Substances. Finally, for each of the pesticide chemicals there is a reference to the appropriate Section of the Code of Federal Regulations, 40 CFR 180, where the various crop tolerances may be located.