Anonymous, N/A 1987 . Annual Report (Cocoa Research Institute, Ghana) 24-30.

Notes: The results are presented of 3 projects on the biology, incidence and control of mealybugs (especially Planococcoides njalensis, Planococcus citri, Phenacoccus hargreavesi, Pseudococcus concavocerarii and Ferrisia virgata) and other pests on cocoa in Ghana. These were on the field evaluaton of varietal susceptiblity to cocoa insect pests, evaluation of sampling methods for estimating population densities of mealybugs, and natural enemies of mealybugs.