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Parasitism rates of Bemisia tabaci(Gennadius) and searching and oviposition behaviours of its parasitoid Eretmocerus mundus Mercet were compared on two cassava varieties: a glabrous variety, Nase 4 and a hirsute variety, MM970245 withc.88 leaf hairscm2. Parasitism was assessed after potted plants...


Otim, M.Kyalo, G.Kyamanywa, S.Asiimwe, P.Legg, J.P.Guershon, MGerling, D.[Parasitism of Bemisia tabaci (Homoptera: aleyrodidae) by Eretmocerus mundus (Hymenoptera: aphelinidae) on cassava]Parasitism of Bemisia tabaci (Homoptera: aleyrodidae) by Eretmocerus mundus (Hymenoptera: aphelinidae) on cassava
Legg, J.P.[Great lake cassava initiative (GLCI) annual cassava disease and pest surveillance under the GLCI project]Great lake cassava initiative (GLCI) annual cassava disease and pest surveillance under the GLCI project

Recent and current efforts at IITA to assess risks due to the various biotic stresses, arthropod pests and diseases, are presented for different cropping systems. In the case of cassava arthropod pests, the focus is on temperature-mediated interactions between the pest and its natural enemy which...


Tamo, M.Beed, Fen D.Goergen, Georg E.Hanna RCoyne, D.Asten, Piet J.A. vanLegg, J.P.[Risk assessment and modelling: IITA]Risk assessment and modelling: IITA
Wosula, Everlyne N.Evans, G.A.Issa, K.A.Legg, J.P.[Two new invasive whiteflies (Hemiptera: Aleyrodidae) to Tanzania]Two new invasive whiteflies (Hemiptera: Aleyrodidae) to Tanzania
Mkamilo, G.S.Ndyetabula, I.L.Jeremiah, S.C.Merumba, S.M.Kibura, J.Karugaba, R.KChirimi, B.Bagambisa, C.Milala, P.Chuwa, C.Ngendello, T.Legg, J.P.Kanju, E.E.Ntawuruhunga, Pheneas[Recently released cassava varieties in the lake zone of Tanzania]Recently released cassava varieties in the lake zone of Tanzania
Bigirimana, S.Bizimana, S.Barumbanze, P.Busungu, C.Legg, J.P.[Monitoring and diagnostic survey of cassava mosaic virus disease (CMD) in Burundi]Monitoring and diagnostic survey of cassava mosaic virus disease (CMD) in Burundi
Obiero, H.Akhwale, M.Okao-Okuja, G.Asiimwe, P.Legg, J.P.[Monitoring and diagnostic survey of cassava mosaic virus disease (CMD) in Western Kenya]Monitoring and diagnostic survey of cassava mosaic virus disease (CMD) in Western Kenya

A study compared the spread of sweet potato virus disease (SPVD) into crops of two moderately resistant and initially SPVD-free sweet potato cultivars in northern and southern Mpigi, Uganda. Whiteflies, the vector of sweet potato chlorotic stunt crini virus (SPCSV), a component cause of SPVD, wer...


Aritua, ValentineLegg, J.P.Smit, N.E.Gibson, R.W.[Effect of local inoculum on the spread of sweetpotato virus disease: limited infection of susceptible cultivars following widespread cultivation of a resistant sweetpotato cultivar]Effect of local inoculum on the spread of sweetpotato virus disease: limited infection of susceptible cultivars following widespread cultivation of a resistant sweetpotato cultivar

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