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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)....


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

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.


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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