Evaluation de l’efficacité en Afrique tropicale de la lutte biologique classique contre trois homoptères nuisibles d’origine exotique

Abstract

Techniques for evaluating biological control of cassava mealybug (Phenacoccus manihoti Matile-Ferrero), mango mealybug (Rastrococcus invadens Williams), and spiralling whitefly (Aleurodicus dispersus Russell) are described. In each case, two exotic hymenopterous parasitoids were introduced. Alone or together, they brought the pests under control, while indigenous and exotic coccinellids played a minor role.