@ARTICLE {SCHULTHESS:1991, title = {The influence of the cassava mealybug Phenacoccus manihoti Mat. -Ferr. (Hom., Pseudococcidae) on yield formation of cassava, Manifhoti esculenta Crantz}, author = {Schulthess, F. and Baumgaertner, J. U. and Delucchi, V. and Gutierrez, A. P. }, journal = {Journal of Applied Entomology}, year = {1991}, volume = {111}, number = {2}, pages = {155--165}, note = {RTB; Root and Tuber; Cassava}, }