@INBOOK {NEUENSCHWANDER:1990, title = {Biological control of cassava mealybug, Phenacoccus manihoti in Africa: review of field studies}, author = {Neuenschwander, P. and Hammond, W. }, year = {1990}, type = {Integrated pest management for tropical root and tuber crops, edited by S.K. Hahn and F.E. Caveness}, pages = {42--50}, publisher = {International Institute of Tropical Agriculture (IITA)}, address = {Ibadan, Nigeria}, note = {RTB; Root and Tuber; Cassava}, }