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Journal Article 2003

Autor: Alabi, O.Y. Odebiyi, J.A. Jackai, L.E.N.

Ten cowpea cultivars were screened for resistance to flower bud thrips, Megalurothrips sjostedti, in replicated field trials. Resistance was evaluated by measuring differences in populations and visual damage on the cultivars. Statistical correlation was employed to assess the degree of associati...

Enlace original: https://cgspace.cgiar.org/handle/10568/98142

Investigación en Agricultura
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Alabi, O.Y. ,  Odebiyi, J.A. ,  Jackai, L.E.N. ,  [Field evaluation of cowpea cultivars (Vigna unguiculata L Walp.) for resistance to flower thrips (Megalurothrips sjostedti Trybom) (Thysanoptera: Thripidae)] ,  Field evaluation of cowpea cultivars (Vigna unguiculata L Walp.) for resistance to flower thrips (Megalurothrips sjostedti Trybom) (Thysanoptera: Thripidae)
Journal Article 1991

Autor: Afun, J. Jackai, L.E.N. Hodgson, C.

‘Monitored' sprays are applied when the action threshold (AT) has been reached or exceeded, based on monitoring of crop damage or pest infestation, whereas ‘calendar' sprays are applied at specific days after planting without taking into account continued presence or absence of the pest. In this ...

Enlace original: https://cgspace.cgiar.org/handle/10568/98629

Investigación en Agricultura
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Afun, J. ,  Jackai, L.E.N. ,  Hodgson, C. ,  [Calendar and monitored insecticide application for the control of cowpea pests] ,  Calendar and monitored insecticide application for the control of cowpea pests
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 1994

Autor: Akinlosotu, T.A. Jackai, L.E.N. Ntonifor, N. Hassan, A. Agyakwa, C.W. Odebiyi, J. Akingbohungbe, A.E. Rossel, H.W.

The aleyrodid Aleurodicus dispersus is reported from Nigeria. The first observation was made on cassava in early 1992 at several locations in Ibadan. A survey carried out in January 1993 revealed that several genera, many of them important food and ornamental crops, are food plants of the insect.

Enlace original: https://cgspace.cgiar.org/handle/10568/100943

Investigación en Agricultura
Enlace permanente
Akinlosotu, T.A. ,  Jackai, L.E.N. ,  Ntonifor, N. ,  Hassan, A. ,  Agyakwa, C.W. ,  Odebiyi, J. ,  Akingbohungbe, A.E. ,  Rossel, H.W. ,  [Spiralling whitefly, Aleurodicus dispersus in Nigeria] ,  Spiralling whitefly, Aleurodicus dispersus in Nigeria

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