@INBOOK {LEGG:2003, title = {Biological control of whiteflies in sub-Saharan Africa}, author = {Legg, J. and Gerling, D. and Neuenschwander, P. }, editor = {Neuenschwander, P. and Borgemeister, C. and Langewald, J. }, year = {2003}, month = {June}, type = {Biological control in IPM systems in Africa}, pages = {87--100}, chapter = {6}, publisher = {CABI}, address = {Wallingford}, isbn = {0-85199-639-6}, }