@PROCEEDINGS {HERREN:1988a, title = {Cassava mealybug (Phenacoccus manihoti) and green spider mites (Mononychellus spp.) biological control: an example of classical biological control for Africa}, author = {Herren, H. R. and Neuenschwander, P. and Hammond, W. and Yaninek, J. and Gutierrez, A. P. and Haug, T. and Schulthess, F. and Lohr, B. and Varela, A. M. and Hennessey, R. D. }, booktitle = {Proceeding of the VIIth Symposium of the International Society for Tropical Root Crops}, year = {1988}, pages = {593--597}, publisher = {Institut national de la recherche agronomique (INRA)}, address = {Paris & Guadeloupe}, note = {RTB; Root and Tuber; Cassava.; 593-597pp.}, }