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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

In cassava chips sampled on a local market in Cotonou, Republic of Benin, West Africa, Dinoderus bifoveolatus Wollaston was the predominant pest. In olfactometer experiments, cassava chips infested by male D. bifoveolatus were highly attractive to both sexes of the beetle, suggesting that male D....


Borgemeister, C.Schäfer, K.Goergen, Georg E.Awande, S.Setamou, M.Poehling, H.M.Scholz, D.[Hostfinding behavior of Dinoderus bifoveolatus (Coleoptera: Bostrichidae), an important pest of stored cassava: the role of plant volatiles and odors of conspecifics]Hostfinding behavior of Dinoderus bifoveolatus (Coleoptera: Bostrichidae), an important pest of stored cassava: the role of plant volatiles and odors of conspecifics

The whitefy Bemisia tabaci, a species complex consisting of many morphologically indistinguishable species divided into distinct clades, is one of the most globally important agricultural pests and plant virus vectors. Cassava-colonizing B. tabaci transmits viruses that cause cassava mosaic disea...


Chen, W.Wosula, Everlyne N.Hasegawa, D.K.Casinga, C.Shirima, R.R.Fiaboe, K.K.M.Hanna, R.Fosto, A.Goergen, Georg E.Tamò, M.Mahuku, George S.Murithi, H.M.Tripathi, L.Mware, B.Kumar, P.L.Ntawuruhunga, PheneasMoyo, C.Yomeni, M.Boahen, S.Edet, M.Awoyale, W.Wintermantel, William M.Ling, K.S.Legg, J.P.Fei, Z.[Genome of the African cassava whitefly Bemisia tabaci and distribution and genetic diversity of cassava-colonizing whiteflies in Africa]Genome of the African cassava whitefly Bemisia tabaci and distribution and genetic diversity of cassava-colonizing whiteflies in Africa

Different combinations of insects belonging to three trophic levels were released in large cages with hydroponie cultures of cassava in a greenhouse. The cassava mealybug (CM )' Phenacoccus manihoti Matile-Ferrero (Horn., Pseudococcidae) was applied at two initial infestation densities to cassava...


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
Akoroda, M.O.Amegbeto, K.Asiedu, RobertAttey, A.N.Baah, F.Bakam, I.Bandyopadhyay, RanajitBoivin, M.Boons, P.Cornet, D.Coyne, D.L.David, S.Dixon, A.Dumet, D.Ezedinma, C.Gockowski, J.Goergen, Georg E.Gyamfi, I.Hanna, R.Halos-Kim, L.Hauser, S.Hughes, J.Kikuno, H.Kolesnikova-Allen, M.Legg, C.Legg, J.P.Lema, A.Lemchi, J.Lokko, Y.Makinde, K.Mahungu, N.M.Maroya, N.G.Maziya-Dixon, B.B.Mkumbira, J.Mva Mva, J.Mwangi, M.Nguimgo, B.Nielsen, O.Nkamleu, G.B.Nolte, C.Norgrove, L.Ogbe, F.Okafor, C.Okechukwu, R.Okoro, E.Patino, M.Sanni, L.O.Shiwachi, H.Ssemakula, G.N.Tarawali, G.Tenkouno, A.Tindo, M.Toko, M.Weise, S.F.Wendt, J.Yapo Assamoi, A.[Program E: Enhancing livelihoods in the humid and subhumid zones of West and Central Africa through profitable and sustainable intensification of diverse agricultural systems]Program E: Enhancing livelihoods in the humid and subhumid zones of West and Central Africa through profitable and sustainable intensification of diverse agricultural systems

The African root and tuber scale (ARTS) Stictococcus vayssierei Richard is a subterranean insect originally infesting several native plant species in the forest zones of Central Africa. With help of the native ant Anoplolepis tenella Santchi, ARTS has recently emerged as a major constraint to cas...


Tindo, M.Hanna, R.Wijnans, L.Nolte, C.Goergen, Georg E.Nguekam, A.Ngeve, J.M.[Pre-planting removal of host-plant residues to reduce African root and tuber scale infestations in cassava fields in Cameroon]Pre-planting removal of host-plant residues to reduce African root and tuber scale infestations in cassava fields in Cameroon

The biology and behaviour of the signiphorid Chartocerus hyaipennis (HAYAT) were studied in the laboratory on Epidinocarsis lopezi (DE SANTlS), a parasitoid of the cassava mealybug Phenacoccus manihoti MATlLE-FERRERO. Only mummified secondary hosts, i.e. mealybugs, were accepted for ovi-position....


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

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