This document provides the information needed to meet the standards for pesticide applicator certification. Section one deals with the identification of pests and the diagnosis of pest damage. Section two provides an introduction to weed characteristics and herbicide usage. The application, formulation, effects and safety of herbicides in general is discussed. Equipment use and handling are presented in section three. In particular this document discusses power sprayers and dusters and aerial equipment. Important practical calculation methods and conversions are provided and illustrated. A series of fact sheets on specific pests are provided in part four. (CS)