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The functional responses of larva and female Iphiseius degenerans BERLESE and protonymph and female Neoseiulus idaeus (DENMARK & MUMA) were determined with different developmental stages of the cassava green mite (CGM), Mononychellus tanajoa BONDAR, as food supplied at densities of 1, 2, 5, 10, 2...


Akpokodje, G.Odebiyi, J.Ochieng, R.Herren, H.[Functional responses of Neoseiulus idaeus and Iphiseius degenerans (Acarina: Phytoseiidae) feeding on the cassava green mite, Mononychellus tanajoa (Acarina: Tetranychidae)]Functional responses of Neoseiulus idaeus and Iphiseius degenerans (Acarina: Phytoseiidae) feeding on the cassava green mite, Mononychellus tanajoa (Acarina: Tetranychidae)

Role of trichome density in cassava resistance to mealybug, Phenacoccus manihoti Matile-Ferrero was evaluated on the apex, the first expanded leaf and the stem in pubescent and glabrous cassava varieties. Pubescence significantly retarded the rate of settling and establishment of P. manihoti. The...


Kasu, T.Odebiyi, J.Lema, K.[Effects of cassava pubescene on the behaviour, postembryonic development and reproduction of the cassava mealybug, Phenacoccus manihoti matileferrero (Homoptera: pseudococcidae)]Effects of cassava pubescene on the behaviour, postembryonic development and reproduction of the cassava mealybug, Phenacoccus manihoti matileferrero (Homoptera: pseudococcidae)

The effect of host plant resistance on growth and developmental parameters of the bean flower thrips Megalurothrips sjostedti Trybom was determined on nine cowpea (Vigna unguiculata {L.}Walp.) cultivars under laboratory conditions. Newly emerged adults M. sjostedti were confined on peduncles with...


Alabi, O.Odebiyi, J.Tamo, M.[Effect of hostplant resistance on growth and developmental parameters of the flower bud thrips, Megalurothrips sjostedti (Trybom) on some resistant cowpea (Vigna unguiculata [L.] Walp.) cultivars]Effect of hostplant resistance on growth and developmental parameters of the flower bud thrips, Megalurothrips sjostedti (Trybom) on some resistant cowpea (Vigna unguiculata [L.] Walp.) cultivars

Preliminary screening of germplasm from the International Institute of Tropical Agriculture (IITA) showed that a number of cowpea Vigna unguiculata (L). Walp. cultivars have potential for resistance to the flower bud thrips, Megalurothrips sjostedti (Trybom). In an earlier study, 10 cultivars fro...

Un criblage pneliminaire de la collection de I'Institut International d' Agriculture Tropicale (rITA) a montre que de nombreux cultivars de ruebe Vigna unguiculata (L). Walp. presentent ill) potentiel de resistance au trips des bourgeons de £leurs Megn/urotizrips sjostedli (Trybom). Dans une etud...


Alabi, O.Odebiyi, J.Tamo, M.[The relationship between primary metabolites in reproductive structures of cowpea Vigna unguiculata (Fabaceae: Papilionidae) cultivars and field resistance to the flower bud thrips Megalurothrips sjostedti (Thysanoptera: Thripidae)]The relationship between primary metabolites in reproductive structures of cowpea Vigna unguiculata (Fabaceae: Papilionidae) cultivars and field resistance to the flower bud thrips Megalurothrips sjostedti (Thysanoptera: Thripidae)

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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