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Striga gesnerioides (Willd) Vatke, is a major destructive parasitic weed of cowpea (Vigna unguiculata (L.) Walp.) which causes substantial yield reduction in West and Central Africa. The presence of different virulent races within the parasite population contributes to significant genotype × envi...


Omoigui, L.O.Kamara, A.Y.Ajeigbe, Hakeem A.Akinwale, R.O.Timko, M.P.Oyekunle, M.Bello, L.L.[Performance of cowpea varieties under Striga gesnerioides (Willd.) Vatke infestation using biplot analysis]Performance of cowpea varieties under Striga gesnerioides (Willd.) Vatke infestation using biplot analysis

On-farm trials were conducted in 2001, 2002, and 2003 in the northern Guinea savanna of Nigeria to evaluate integrated Striga hermonthica control measures under farmermanaged conditions. These included intercropping a Striga-resistant maize variety with cowpea for 3 years and also cropping this m...


Kureh, I.Kamara, A.Y.Tarfa, B.D.[Influence of cereal legume rotation on Striga control and maize grain yield in farmers fields in the northern Guinea Savanna of Nigeria]Influence of cereal legume rotation on Striga control and maize grain yield in farmers fields in the northern Guinea Savanna of Nigeria

Cowpea (Pzgna unguiculata) is grown as an intercrop with cereals in some 9 M ha of West Africa, mostly in the dry savanna. Though grain yields are low (circa 500 kg/ha), it is a nutritious food and dry season fodder. The haulms (leaves and stems) are cut and stored after grain harvest. Cowpea aid...


Tarawali, Shirley A.Okike, I.Kristjanson, Patricia M.Singh, B.B.[Dual-purpose cowpea for West Africa]Dual-purpose cowpea for West Africa

In the moist savanna zone with a 180 to 190 day growing period, early season cowpea immediately followed by a late season cereal crop can maximize the benefit of the legume to the cereal. Traditional cereal crops for this system are millet and sorghum but new early maize varieties can also be use...


Carsky, R.J.Singh, B.B.Oyewole, B.[Contribution of early season cowpea to late season maize in the savanna zone of West Africa]Contribution of early season cowpea to late season maize in the savanna zone of West Africa

Les insectes ravageurs constituent une contrainte importante à la production du niébé au Burkina Faso. La présente étude visait à fournir aux producteurs une stratégie de lutte intégrée combinant la résistance variétale vis-à-vis de Clavigralla tomentosicollis Stäl et des pulvérisations d’amandes...

Insect pests are important constraints to cowpea production in central Burkina Faso. The main goal of this study was to provide an IPM strategy based on combination of resistant varieties to the pod sucking bug, and the application of neem seed extract against flower thrips (Megalurothrips sjoste...


Ba, N.M.Dabiré, C.B.Drabo, I.Sanon, A.Tamo, M.[Combinaison de la resistance varietale et dinsecticides a base de neem pour controler les principaux insectes ravageurs du niebe dans la region centrale du Burkina Faso]Combinaison de la resistance varietale et dinsecticides a base de neem pour controler les principaux insectes ravageurs du niebe dans la region centrale du Burkina Faso

The average productivity of cowpea in the existing traditional systems is low due to a complex of biotic and abiotic stresses. The biotic factors include insect pests, parasitic plants, and viral, fungal and bacterial diseases. Concerted efforts are being made to develop improved cowpea varieties...


Ajeigbe, Hakeem A.Singh, B.B.Emechebe, A.M.[Field evaluation of improved cowpea lines for resistance to bacterial blight, virus and striga under natural infestation in the West African savannas]Field evaluation of improved cowpea lines for resistance to bacterial blight, virus and striga under natural infestation in the West African savannas

The most damaging storage pest in cowpea [Vigna unguiculata (L.) Walp] is Callosobruchus maculatus (F.), commonly known bruchid. Therefore, concerted efforts are being made at the International Institute of Tropical Agriculture (IITA) to develop bruchid-resistant cowpea varieties. By systematic s...


Singh, B.B.Singh, S.R.Adjadi, O.[Bruchid resistance in cowpea]Bruchid resistance in cowpea

Cowpeas (blackeye peas, or simply beans in many parts of Africa), Vigna unguiculata, are widely grown in the tropics and subtropics for human as well as for animal food. Nigeria, Brazil, and Niger are among the major producers and account for over 70% of the world crop (137, 174). Nigeria alone...


Jackai, L.E.N.Daoust, R.A.[Insect pests of cowpeas]Insect pests of cowpeas

The potential of alley cropping maize and cowpea with the giant Leucaena (Leucaena leucocephala (Lam) de Wit) cultivar K-28 was studied on an Entisol (Psammentic Ustorthent) in Southern Nigeria. In this trial the crops were grown in 4 m wide alleys formed by periodically pruned leucaena hedgerows...


Kang, B.T.Grimme, H.Lawson, T.L.[Alley cropping sequentially cropped maize and cowpea with Leucaena on a sandy soil in southern Nigeria]Alley cropping sequentially cropped maize and cowpea with Leucaena on a sandy soil in southern Nigeria

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