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Hanna, R.Gnanvossou, D.Ajuno, O.Dusengue, E.Kroschel, J.Tonnang, Henri E.Z.Dongmo, M.[Cassava mealybug, Phenacoccus manihoti Matile-Ferrero.]Cassava mealybug, Phenacoccus manihoti Matile-Ferrero.
Hanna, R.Agnontcheme, D.Gnanvossou, D.Goergen, Georg E.Agbaka, A.[Inventaire et importance des degats des mouches des fruits sur quelques varietes d’agrumes au Benin]Inventaire et importance des degats des mouches des fruits sur quelques varietes d’agrumes au Benin

The attraction of the predatory mites, Typhlodromalus manihoti and Typhlodromalus aripo, to the host plant-spider mite complex, Manihot esculenta–Mononychellus tanajoa, was investigated with a Y-tube olfactometer. Factors examined included predator starvation period, several combinations of cassa...


Gnanvossou, D.Hanna, R.Dicke, M.Yaninek, S.[Attraction of the predatory mites Typhlodromalus manihot and Typhlodromalus aripo to cassava plants infested by cassava green mite]Attraction of the predatory mites Typhlodromalus manihot and Typhlodromalus aripo to cassava plants infested by cassava green mite

In 2003, the invasive fruit ßy Bactrocera invadens Drew, Tsuruta & White (Diptera: Tephritidae) (Drew et al. 2005), of possible Sri Lankan origin, has been detected in the East and about 1 yr later in West Africa. In regular surveys in Benin and Cameroon covering 4 yr, samples from 117 plant spec...


Goergen, Georg E.Vayssières, Jean-FrançoisGnanvossou, D.Tindo, M.[Bactrocera invadens (Diptera: Tephritidae), a new invasive fruit fly pest for the afrotropical region: host plant range and distribution in West and Central Africa]Bactrocera invadens (Diptera: Tephritidae), a new invasive fruit fly pest for the afrotropical region: host plant range and distribution in West and Central Africa

The cassava green mite Mononychellus tanajoa (Bondar) (Acari: Tetranychidae) is one of the most important pests of cassava, a main staple food crop in Tanzania. The International Institute of Tropical Agriculture (ETA) in collaboration with the Tanzania National Biological Control P r o m (NBCP) ...


Pallangyo, B.Hanna, R.Toko, M.Gnanvossou, D.Mgoo, V.Otema, M.Onzo, A.Hountondji, F.C.C.Nsami, E.Mfugale, O.[Biological control of cassava green mite in Tanzania]Biological control of cassava green mite in Tanzania

GC/MS analysis of essential oils extracted from four Cymbopogon species revealed that the majors compounds were trans-p-mentha-1(7),8-dien-2-ol (21.9%), cis-p-mentha-1(7),8-den- 2-ol (19.4%), trans-p-mentha-2,8-dien-1-ol (9.6%), cis-p-mentha-2,8-dien-1-ol (7.2%), cis-pmenth-2-en-1-ol (7.2%), limo...


Bothon, F.Gnanvossou, D.Noudogbessi, J.Hanna, R.Sohounhloue, D.[Bactrocera Cucurbitae response to four Cymbopogon species essential oils]Bactrocera Cucurbitae response to four Cymbopogon species essential oils
Godonou, I.Sӕthre, M.G.Tepa-Yotto, G.T.Gnanvossou, D.Douro-Kpindou, O.K.Coyne, D.[Identifying and managing plant health risks for key African crops: vegetables]Identifying and managing plant health risks for key African crops: vegetables
Neuenschwander, P.Gnanvossou, D.Hauser, S.Goergen, Georg E.Hanna, R.Norgrove, L.Negloh, K.Agboton, C.[Identifying and managing plant health risks for key African crops: fruit and other tree crops]Identifying and managing plant health risks for key African crops: fruit and other tree crops

A survey of the pathogenic fungi associated with mites on cassava in Benin, West Africa, revealed both geographical and seasonal variation in the presence of Neozygites cf. floridana (Weiser and Muma) and Hirsutella thompsonii Fisher on Mononychellus tanajoa (Bondar) and Oligonychus gossypii (Zac...


Yaninek, John S.Saizounou, Z.Onzo, A.Zannou, I.Gnanvossou, D.[Seasonal and habitat variability in the fungal pathogens, neozygites cf. floridana and Hirsutella thompsonii, associated with cassava mites in Benin]Seasonal and habitat variability in the fungal pathogens, neozygites cf. floridana and Hirsutella thompsonii, associated with cassava mites in Benin

Parasitoids, released in augmentative biological control programmes, which display a rapid host-location capacity, have a higher likelihood of successfully controlling target pest species. By learning to associate sensory cues to a suitable oviposition site, might parasitoids used as biological c...


Monsia, A.Mègnigbèto, G.S.B.Gnanvossou, D.Karlsson, M.F.[Effect of fruit and host fly species on the associative learning by Fopius arisanus]Effect of fruit and host fly species on the associative learning by Fopius arisanus

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