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Host stage selection and sex allocation behaviors by Anagyrus mangicola Noyes were studied in choice and no-choice experiments in the laboratory. All host instars of the mango mealybug (MM), Rastrococcus invadens Williams (Hem., Pseudococcidae), were parasitized. First instars were less often enc...


Bokonon-Ganta, A.H.Neuenschwander, P.Vanalphen, J.J.M.Vos, M.[Host stage selection and sex allocation by Anagyrus mangicola (Hymenoptera: encyrtidae), a parasitoid of the mango mealybug, Rastrococcus invadens (Homoptera: pseudococcidae)]Host stage selection and sex allocation by Anagyrus mangicola (Hymenoptera: encyrtidae), a parasitoid of the mango mealybug, Rastrococcus invadens (Homoptera: pseudococcidae)

Two specific endophagous parasitoids Gyranusoidea tebygi and Anagyrus mangicola, of Indian origin, were mass‐reared at the International Institute of Tropical Agriculture in Cotonou and released against the mango mealybug Rastrococcus invadens, in collaboration with national biological control pr...


Neuenschwander, P.Boavida, C.Bokonon-Ganta, A.H.Gado, A.Herren, H.R.[Establishment and spread of Gyranusoidea tebygi Noyes and Anagyrus mangicola Noyes (Hymenoptera: Encyrtidae), two biologigal control agents released against the mango mealybug Rastrococcus invadens Williams (Homoptera: Pseudococcidae) in Africa]Establishment and spread of Gyranusoidea tebygi Noyes and Anagyrus mangicola Noyes (Hymenoptera: Encyrtidae), two biologigal control agents released against the mango mealybug Rastrococcus invadens Williams (Homoptera: Pseudococcidae) in Africa

Population data concerning the cassava mealybug (CM) Phenacoccus manihoti Matile-Ferrero, the introduced parasitoid Epidinocarsis lopezi (De Santis), and indigenous antagonists were collected, together with ecological and plant growth variables, during a survey of 414 fields covering all ecologic...


Neuenschwander, P.Hammond, W.Ajuonu, O.Gado, A.Echendu, N.Bokonon-Ganta, A.H.Allomasso, R.Okon, I.[Biological control of the cassava mealybug, Phenacoccus manihoti (Hom., Pseudococcidae) by Epidinocarsis lopezi (Hym., Encyrtidae) in West Africa, as influenced by climate and soil]Biological control of the cassava mealybug, Phenacoccus manihoti (Hom., Pseudococcidae) by Epidinocarsis lopezi (Hym., Encyrtidae) in West Africa, as influenced by climate and soil
Goergen, Georg E.Ajuonu, O.Kyofa-Boamah, M.E.Umeh, V.Bokonon-Ganta, A.H.Tamo, M.Neuenschwander, P.[Classical biological control of Papaya mealybug in West Africa]Classical biological control of Papaya mealybug in West Africa

Parasitoids that oviposit in a concealed host inside a plant part need to be able to find both the plant and the host. Egg parasitoids of fruit-infesting Tephritidae need to assess the oviposition site based both on the host egg and the infested fruit. Infestation by Tephritidae fruit flies threa...


Ayelo, P.M.Sinzogan, A.A.C.Bokonon-Ganta, A.H.Karlsson, M.F.[Host species and vegetable fruit suitability and preference by the parasitoid wasp Fopius arisanus]Host species and vegetable fruit suitability and preference by the parasitoid wasp Fopius arisanus

Plants damaged by herbivores are known to release odors attracting parasitoids. However, there is currently no information how leguminous plants damaged by the pod borer Maruca vitrata attract the exotic larval parasitoid Therophilus javanus, which was imported into Benin from the putative area o...


Souna, D.A.Bokonon-Ganta, A.H.Dannou, E.A.Imorou, N.Agui, B.Cusumano, A.Srinivasan, R.Pittendrigh, B.R.Volkoff, A.N.Tamo, M.[Volatiles from Maruca vitrata (Lepidoptera, Crambidae) host plants influence olfactory responses of the parasitoid Therophilus javanus (Hymenoptera, Braconidae, Agathidinae)]Volatiles from Maruca vitrata (Lepidoptera, Crambidae) host plants influence olfactory responses of the parasitoid Therophilus javanus (Hymenoptera, Braconidae, Agathidinae)

Therophilus javanus is a koinobiont, solitary larval endoparasitoid currently being considered as a biological control agent against the pod borer Maruca vitrata, a devastating cowpea pest causing 20–80% crop losses in West Africa. We investigated ovary morphology and anatomy, oogenesis, potentia...


Souna, D.A.Bokonon-Ganta, A.H.Ravallec, M.Cusumano, A.Pittendrigh, Barry R.Volkoff, A.N.Tamò, M.[An insight in the reproductive biology of Therophilus javanus (Hymenoptera, Braconidae, and Agathidinae), a potential biological control agent against the legume pod borer (Lepidoptera, Crambidae)]An insight in the reproductive biology of Therophilus javanus (Hymenoptera, Braconidae, and Agathidinae), a potential biological control agent against the legume pod borer (Lepidoptera, Crambidae)

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