@INBOOK {CHERRY:2003, title = {Biological control of Helicoverpa armigera in Africa}, author = {Cherry, A. and Cock, M. and van den Berg, H. and Kfir, R. *}, editor = {Neuenschwander, P. and Borgemeister, C. and Langewald, J. }, year = {2003}, pages = {329--346}, chapter = {21}, publisher = {CABI}, address = {Wallingford}, isbn = {0-85199-639-6}, note = {In: Biological control in IPM in Africa edited by Neuenschwander P., Borgemeister C., Langewald J.; 414p.}, }