The objective of our study is to identify the phytosanitary products used, the methods and practices of management of these products by the market gardeners installed in the Classified Forest of Mbao (FCM). Initiated the study of the negative effects of the use of phytosanitary products by market gardeners. It consisted in taking a quarter of the total population of market gardeners, i.e. 100 surveyed market gardeners. Then, we administered a questionnaire...