Williams, D.J. 1978a Taxonomy of mealybugs on cassava.. Proceedings of the International Workshop on the cassava mealybug Phenacoccus manihoti Mat.-Ferr. (Pseudococcidae). International Institute of Tropical Agriculture Ibadan, Nigeria vi + 85 pp.

Keywords:

host

key

Notes: [Conference held at INERA-M'vuazi, Bas-Zaire, Zaire, June 26-29, 1977.] Keys are given to the external morphological characters of the 6 species of mealybugs known on cassava in West Africa, and to the microscopic characters of the 10 species known in the world on cassava. A method for the preparation of pseudococcids for routine identification is also described.