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Journal Article 1992

Autor: Jackai, L.E.N. Inang, E.E.

The growth and development of Clavigralla tomentosicollis Stäl (Hemiptera: Coreidae) and Maruca testulalis Geyer (Lepidoptera: Pyralidae) were studied under laboratory conditions using three cultivated Vigna varieties (IT84E‐124, TVu 1890, MRx 10‐85S) and one wild variety (TVNu 72) under a range ...

Enlace original: https://cgspace.cgiar.org/handle/10568/100039

Investigación en Agricultura
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Jackai, L.E.N. ,  Inang, E.E. ,  [Development profiles of two cowpea pests on resistant and susceptible Vigna genotypes under constant temperatures] ,  Development profiles of two cowpea pests on resistant and susceptible Vigna genotypes under constant temperatures
Journal Article 1986

Autor: Jackai, L.E.N. Daoust, R.A.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/96327

Investigación en Agricultura
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Jackai, L.E.N. ,  Daoust, R.A. ,  [Insect pests of cowpeas] ,  Insect pests of cowpeas
Journal Article 2001-06

Autor: Jackai, L.E.N. Nokoe, S. Tayo, B.O. Koona, P.

Studies were conducted in the laboratory to investigate the different components of the resistance of Vigna vexillata A. Richards, TVnu 72, and several cultivars of cultivated Vigna spp. to infestation and damage by the brown cowpea coreid, Clavigralla tomentosicollis Stäl. The main objective was...

Enlace original: https://cgspace.cgiar.org/handle/10568/96908

Investigación en Agricultura
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Jackai, L.E.N. ,  Nokoe, S. ,  Tayo, B.O. ,  Koona, P. ,  [Inferences on pod wall and seed defenses against the brown cowpea coreid bug, Clavigralla tometosicollis Stal ( Hempptera Coreidae) in wild and cultivated Vigna species] ,  Inferences on pod wall and seed defenses against the brown cowpea coreid bug, Clavigralla tometosicollis Stal ( Hempptera Coreidae) in wild and cultivated Vigna species
Book Chapter 1997

Autor: Bottenberg, H. Tamo, M. Arodokoun, D. Jackai, L.E.N. Singh, B. Youm, O.

The population dynamics of major cowpea pests was studied in northern Nigeria during 1992-95 in both the wet and dry seasons. Rainfall cowpea is grown as a subsistence crop, mixed at low densities with cereals. Dry-season cowpea is irrigated or grown on residual moisture in monocultures as a cash...

Enlace original: https://cgspace.cgiar.org/handle/10568/95972

Investigación en Agricultura
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Bottenberg, H. ,  Tamo, M. ,  Arodokoun, D. ,  Jackai, L.E.N. ,  Singh, B. ,  Youm, O. ,  [Population dynamics and migration of cowpea pests in northern Nigeria: implications for integrated pest management] ,  Population dynamics and migration of cowpea pests in northern Nigeria: implications for integrated pest management
Journal Article 1995

Autor: Jackai, L.E.N.

Cowpea varieties were evaluated for resistance to Maruca testulalis using differential insecticide sprays that provided a range of pest densities and crop damage. The latter was expressed as a pod evaluation index, Ipe, which uses the degree of pod production or pod load (PL) and pod damage (PD)....

Enlace original: https://cgspace.cgiar.org/handle/10568/101055

Investigación en Agricultura
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Jackai, L.E.N. ,  [The legume pod borer, M. testulalis, and its principal host plant, Vigna unguiculata (L.) Walp Use of selective insecticidal sprays as an aid in the identification of useful levels of resistance] ,  The legume pod borer, M. testulalis, and its principal host plant, Vigna unguiculata (L.) Walp Use of selective insecticidal sprays as an aid in the identification of useful levels of resistance
Journal Article 1995

Autor: Oghiakhe, S. Jackai, L.E.N. Makanjuola, W.A.

Eighteen cowpea cultivars were screened for resistance to the legume pod borer, Maruca testulalis under field conditions at two locations (Mokwa and Ibadan) in Nigeria under unprotected and two types of insecticide protection levels. Unprotected plots gave zero yield due to their exposure to the ...

Enlace original: https://cgspace.cgiar.org/handle/10568/101072

Investigación en Agricultura
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Oghiakhe, S. ,  Jackai, L.E.N. ,  Makanjuola, W.A. ,  [Evaluation of cowpea genotypes for field resistance to the legume pod borer, M. testulalis in Nigeria] ,  Evaluation of cowpea genotypes for field resistance to the legume pod borer, M. testulalis in Nigeria
Journal Article 1996

Autor: Jackai, L.E.N. Padulosi, S. Ng, Q.

A large number of accessions belonging to selected wild Vigna species namely V. unguiculata subspecies dekindtiana, V. oblongifolia, and V. vexillata were evaluated using choice (DCAT) and no-choice (NCFT) laboratory feeding bioassays to determine their resistance to the pod borer, Maruca vitrata...

Enlace original: https://cgspace.cgiar.org/handle/10568/101036

Investigación en Agricultura
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Jackai, L.E.N. ,  Padulosi, S. ,  Ng, Q. ,  [Resistance to the legume pod borer, Maruca vitrata Fabricius and the probable modalities involve in wild Vigna] ,  Resistance to the legume pod borer, Maruca vitrata Fabricius and the probable modalities involve in wild Vigna
Journal Article 1991

Autor: Jackai, L.E.N. Oyediran, I.O.

Neem oil (NO), and different formulations of neem oil in a solution of Tetrapleura tetraptera as emulsifier, including neem oil emulsifiable concentrate (NOEC), neem oil slurry emulsifiable concentrate (NOSEC) and 5% NOEC obtained from the seeds of the neem plant, were tested for their efficacy i...

Enlace original: https://cgspace.cgiar.org/handle/10568/101727

Investigación en Agricultura
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Jackai, L.E.N. ,  Oyediran, I.O. ,  [The potential of neem, Azadirachta indica A. Juss., for controlling postflowering pests of cowpea, Vigna unguiculata Walp. Maruca testulalis, the pod borer] ,  The potential of neem, Azadirachta indica A. Juss., for controlling postflowering pests of cowpea, Vigna unguiculata Walp. Maruca testulalis, the pod borer

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