Designed to promote prevention activities during pesticide use, this guide provides in-depth information and numerous references on the subject. After reviewing the serious, chronic effects associated with the main families of pesticides, the authors recommend proper practices to minimize vegetable workers' exposure to these products. This extensive repertory of pesticides, listed by brand name, presents, for each product, the level of toxicity as well as the recommended length of time workers should wait before returning to the fields. Rounded off by data on the risks associated with flammability and chemical instability, this guide should help vegetable farmers choose the product that presents the least danger.