@INBOOK {FATOKUN:2002a, title = {Breeding cowpea for resistance to insect pests: attempted crosses between cowpea and Vigna vexillata}, author = {Fatokun, C. }, year = {2002}, type = {Challenges and opportunities for enhancing sustainable cowpea production:}, pages = {52--61}, note = {Proceedings of the World Cowpea Conference III held at the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria, 4-8 September 2000}, }