Joseph Ipou Ipou is Professor of weed science at the University Felix Houphouet-Boigny of Ivory Coast. He has done several works in the field of weed control. Its main results have been promoted through publications and communications in national and international symposium. He has participated in the implementation and execution of several research projects in his discipline and in other field of botany. He is currently a consultant to the Ivorian Ministry of Agriculture about the problems of phytosanitary products in general but especially for the evaluation of the biological efficiency and the selectivity of herbicides.