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The tritrophic interactions between mangoes (Mangifera indica), two frugivorous fly species of greateconomic significance, Bactrocera invadens and Ceratitis cosyra, and weaver ants (Oecophylla longinoda)were studied in Benin. We investigated whether Oecophylla cues affect B. invadens and C. cosyr...


Vayssières, Jean-FrançoisSinzogan, A.A.C.Adandonon, A.Mele, P. vanKorie, S.[Ovipositional behaviour of two mango fruit fly species (Diptera Tephritidae) in relation to Oecophylla cues (Hymenoptera Formicidae) as compared to natural conditions without ant cues]Ovipositional behaviour of two mango fruit fly species (Diptera Tephritidae) in relation to Oecophylla cues (Hymenoptera Formicidae) as compared to natural conditions without ant cues
Vayssières, Jean-FrançoisSinzogan, A.A.C.Adandonon, A.Rey, J.Dieng, E. O.Camara, K.Sangare, A.Ouédraogo, S.Hala, N.Sidibe, A.Keita, Y.Gogovor, G.Korie, S.Coulibaly, O.Kikissagbe, CinthiaTossou, AllianceBillah, M.Biney, K.Nobime, O.Diatta, P.N'Depo, O. RobertNoussourou, M.Traoré, L.Saizonou, S.Tamo, M.[Annual population dynamics of mango fruit flies (Diptera: Tephritidae) in West Africa: socioeconomic aspects, host phenology and implications for management]Annual population dynamics of mango fruit flies (Diptera: Tephritidae) in West Africa: socioeconomic aspects, host phenology and implications for management

Crop pests are a major constraint to the intensification of agricultural production in the tropics, with novel issues related to global change (climate, land use, biological invasions, etc.), food security and preservation of natural resources and biodiversity. A research, extension and education...


Brevault, T.Renou, A.Vayssières, Jean-FrançoisAmadji, G.Assogba-Komlan, F.Diallo, M.D.Bon, H. deDiarra, K.Hamadoun, A.Huat, J.Marnotte, P.Menozzi, P.Prudent, P.Rey, J.Sall, D.Silvie, P.Simon, S.Sinzogan, A.A.C.Soti, V.Tamo, M.Clouvel, P.[DIVECOSYS: Bringing together researchers to design ecologicallybased pest management for smallscale farming systems in West Africa]DIVECOSYS: Bringing together researchers to design ecologicallybased pest management for smallscale farming systems in West Africa

Fruit flies are pests of economic importance inWest Africa due to their quarantine status and losses recorded in fruits and vegetables. Before the introduction of exotic species of parasitoids against any exotic fruit fly species, it is fundamental to first determine the presence and monitor the ...


Vayssières, Jean-FrançoisAdandonon, A.N'Diaye, O.Sinzogan, A.A.C.Kooymann, C.Badji, K.Rey, J.Wharton, R.[Native parasitoids associated with fruit flies (Diptera: Tephritidae) in cultivated and wild fruit crops in Casamance (Senegal)]Native parasitoids associated with fruit flies (Diptera: Tephritidae) in cultivated and wild fruit crops in Casamance (Senegal)

Chemical control has highly expanded over the last 30 years in sub-Saharan Africa to reduce bio-aggressors on all crops. Pest management of fruits and vegetables by small farmers in sub-Saharan Africa have developed anarchically in a fuzzy regulation framework. Pesticide toxicity and excessive ap...


Bon, H. deHuat, J.Parrot, L.Sinzogan, A.A.C.Martin, T.Malézieux, E.Vayssières, Jean-François[Pesticide risks from fruit and vegetable pest management by small farmers in subSaharan Africa: a review]Pesticide risks from fruit and vegetable pest management by small farmers in subSaharan Africa: a review

Introduction. Quarantine heat treatments have not yet been introduced in West Africa and no work has been done to determine the treatment conditions needed to eliminate eggs and larvae of West African fruit fly populations, especially of the new species Bactrocera invadens, from mangoes produced ...


Self, G.Ducamp, M.Thaunay, P.Vayssières, Jean-François[The effects of phytosanitary hot water treatments on West African mangoes infested with Bactrocera invadens (Diptera: Tephritidae)]The effects of phytosanitary hot water treatments on West African mangoes infested with Bactrocera invadens (Diptera: Tephritidae)
Diame, L.Blatrix, R.Grechi, I.Rey, J.Y.Sane, C.A.B.Vayssières, Jean-FrançoisBon, H. deDiarra, K.[Relations between the design and management of Senegalese orchards and ant diversity and community composition]Relations between the design and management of Senegalese orchards and ant diversity and community composition

Introduction. Senegal produces up to 150,000 t of fruit, of which 60,000 t are mangoes. Fruit production is important for the Niayes region, where 60% of total production is of mangoes, with citrus production coming next at 24%. Mango losses have become more substantial since the arrival of Bactr...


Ndiaye, O.Vayssières, Jean-FrançoisRey, J.Ndiaye, S.Diedhiou, P.M.Ba, C.T.Diatta, P.[Seasonality and range of fruit fly (Diptera Tephritidae) host plants in orchards in Niayes and the Thies Plateau (Senegal)]Seasonality and range of fruit fly (Diptera Tephritidae) host plants in orchards in Niayes and the Thies Plateau (Senegal)
Andrieu, NadineVayssières, Jean-FrançoisCorbeels, MarcBlanchard, M.Vall, EricTittonell, Pablo A.[From farm scale synergies to village scale trade-offs: cereal crop residues use in an agro-pastoral system of the Sudanian zone of Burkina Faso]From farm scale synergies to village scale trade-offs: cereal crop residues use in an agro-pastoral system of the Sudanian zone of Burkina Faso

Weaver ants (Oecophylla longinoda Latreille) are used commercially to control pest insects and for protein production. In this respect fast colony growth is desirable for managed colonies. Transplantation of non-nestmate pupae to incipient colonies has been shown to boost colony growth. Our objec...


Ouagoussounon, I.Offenberg, J.Sinzogan, A.A.C.Adandonon, A.Kossou, D.Vayssières, Jean-François[Founding weaver ant queens (Oecophylla longinoda) increase production and nanitic worker size when adopting nonnestmate pupae]Founding weaver ant queens (Oecophylla longinoda) increase production and nanitic worker size when adopting nonnestmate pupae

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