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Goergen, Georg E. ,  Tamò, M. ,  Kyofa-Boamah, M.E. ,  Bokonon-Ganta, A.H. ,  Neuenschwander, P. ,  [Papaya mealybug: a new invading pest in West Africa] ,  Papaya mealybug: a new invading pest in West Africa

Goergen, Georg E. ,  Neuenschwander, P. ,  [A cage experiment with four trophic levels: cassava plant growth as influenced by cassava mealybud, Phenacoccus manihoti, its parasitoid Epidinocarsis lopezi,and the hyperparasitoids Prochiloneurus insolitus and Chartocerus hyalipennis] ,  A cage experiment with four trophic levels: cassava plant growth as influenced by cassava mealybud, Phenacoccus manihoti, its parasitoid Epidinocarsis lopezi,and the hyperparasitoids Prochiloneurus insolitus and Chartocerus hyalipennis

Goergen, Georg E. ,  Neuenschwander, P. ,  [Biology of Prochiloneurus insolitus (Alam) (Hymenoptera, Encyrtidae), a hyperparasitoid on mealybugs (Homoptera, Pseudococcidae): immature morphology, host acceptance and host range in west Africa] ,  Biology of Prochiloneurus insolitus (Alam) (Hymenoptera, Encyrtidae), a hyperparasitoid on mealybugs (Homoptera, Pseudococcidae): immature morphology, host acceptance and host range in west Africa

Goergen, Georg E. ,  Neuenschwander, P. ,  [Chartocerus hyalipennis (Hayat) (Hym: Signiphoridae), a gregarious hyperparasitoid on mealybugs (Hom.: pseudococcidae): biology and host range in west Africa] ,  Chartocerus hyalipennis (Hayat) (Hym: Signiphoridae), a gregarious hyperparasitoid on mealybugs (Hom.: pseudococcidae): biology and host range in west Africa