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Maize streak geminivirus (MSV) isolates originating from maize, other cerealsand 18 grass species in Nigeria were characterized based on symptoms, transmission, host range and serological tests. All isolates could be transmitted to MSV-susceptible sweet corn cv. Golden Bantam using Cicadulina sto...


Mesfin, T.Bosque Pérez, N.A.Buddenhagen, I.W.Thottappilly, G.Oloyede, S.O.[Studies of maize streak virus isolates from grass and cereal hosts in Nigeria]Studies of maize streak virus isolates from grass and cereal hosts in Nigeria

Oviposition and development of Sitophilus zeamais Motschulsky were studied on shelled maize kernels and unshelled cobs of the variety “Blanc Deux Precoce” from the Republic of Benin. On unshelled cobs adult weevils must feed and oviposit mostly on the kernel's crown, the only part of the kernel f...


Kossou, D.K.Bosque Pérez, N.A.Mareck, J.H.[Effects of shelling maize cobs on the oviposition and development Sitophilus zeamais Motschulsky]Effects of shelling maize cobs on the oviposition and development Sitophilus zeamais Motschulsky

Cleary, K.Shaver, I.Chain Guadarrama, AdinaSanfiorenzo, A.Santiago-Garcia, R.I.Finegan, B.Hormel, L.Sibelet, N.Vierling, Lee A.Bosque Pérez, N.A.DeClerck, Fabrice A.J.Fagan, M.Waits, L.P.[Coupled social and ecological systems in tropical agricultural regions: describing and quantifying linked outcomes of agricultural intensification]Coupled social and ecological systems in tropical agricultural regions: describing and quantifying linked outcomes of agricultural intensification

An experiment was designed to compare cycles of selection of four maize genotypes for ear- and grain-quality characteristics, interactions with Aspergillus flavus and Fusarium verticillioides infection, and insect ear infestation in two seasons. Mean infection levels by A. flavus and F. verticill...


Cardwell, K.Kling, J.Maziya-Dixon, B.B.Bosque Pérez, N.A.[Interactions between Fusarium verticillioides, Aspergillus flavus and insects in improved maize populations in lowland Africa]Interactions between Fusarium verticillioides, Aspergillus flavus and insects in improved maize populations in lowland Africa

Damage and losses to stored maize in Africa are often severe. Storage pests of an area have to be identified to determine whether they merit control and to choose appropriate control methods. Know ledge of the biology of pests and of factors influencing preharvest and postharvest infeststion is i...


Kossou, D.K.Bosque Pérez, N.A.[Insect pests of maize in storage: biology and control]Insect pests of maize in storage: biology and control

Sept virus ont etil signales sur Ie ma'is en Afrique tropicale; toutefois, peu d'informations sont dis• ponibles sur ces virus. Le virus de La striure du mals est tres repandu en Afrique subsaharienne; d'autres virus Ie sont moins ou sont d'importance locale seulement. Des informations sur Les vi...


Thottappilly, G.Rossel, H.W.Bosque Pérez, N.A.[Les virus et les maladies virales du mais en Afrique tropicale]Les virus et les maladies virales du mais en Afrique tropicale

Field surveys were conducted during 1990–92 to document the relative abundance of different species of parasites of the lepidopterous stem borers Sesamia calamistis Hampson and Eldana saccharina Walker in maize fields in southwestern Nigeria. Species of parasitoids detected on both stem borers in...


Bosque Pérez, N.A.Ubeku, J.A.Polaszek, A.[Survey for parasites of Sesamia calamistis(Lep.:noctuidae) and Eldana saccharina (Lep.:pyralidae) in southwestern Nigeria]Survey for parasites of Sesamia calamistis(Lep.:noctuidae) and Eldana saccharina (Lep.:pyralidae) in southwestern Nigeria
Markham, R.Bosque Pérez, N.A.Borgemeister, C.Meikle, W.[Developing pest management strategies for Sitophilus zeamais and Prostephanus truncatus in the tropics]Developing pest management strategies for Sitophilus zeamais and Prostephanus truncatus in the tropics

The spatial distribution of five lepidopterous pests, Sesamia calamistis Hampson (Noctuidae), Eldana saccharina Walker (Pyralidae), Spodoptera exempta (Walker) (Noctuidae), Mussidia nigrivenella (Ragonot) (Pyralidae), and Cryptophlebia leucotreta (Meyrick) (Tortricidae), on maize in West Africa i...


Schulthess, F.Bosque Pérez, N.A.Gounou, S.[Sampling lepidopterous pests on maize in West Africa]Sampling lepidopterous pests on maize in West Africa

The distribution and species composition of lepidopterous maize borers was studied in six locations in southern Nigeria during the second planting season (August-November) of 1985 and 1986. Sesamia calamistis Hampson (Noctuidae) and Eldana saccharina Walker (Pyralidae) were the stem borers most a...


Bosque Pérez, N.A.Mareck, J.H.[Distribution and species composition of lepidopterous maize borers in southern Nigeria]Distribution and species composition of lepidopterous maize borers in southern Nigeria

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