@INPROCEEDINGS {HAMMOND:1992, title = {Biological control in cassava: a viable crop protection package for resource-poor farmers}, author = {Hammond, W. and Neuenschwander, P. and Yaninek, J. and Herren, H. R. }, editor = {Gibson, R. and Sweetmore, A. }, booktitle = {Seminar on Crop Protection for Resources-Poor Farmers}, year = {1992}, pages = {45--54}, publisher = {Technical Centre for Agricultural Co-operation (CTA); Natural Resources Institute (NRI)}, address = {The Hague, Netherlands; Chatham, Kent, UK.}, note = {RTB; Root and Tuber; Cassava}, }