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The spiraling whiteflyAleurodicus dis-persus(Russell) is an insect pest that causessubstantial damage to ornamental plants, shade treesand food crops. It was first observed in Benin in 1993.Two host specific parasitoids,Encarsia dispersaandE. guadeloupae,fortuitously introduced wit...


Obinna, A.Peter, N.Korie, S.[Niche separation between Encarsia dispersa and Encarsia guadeloupae, two biological control agents of the spiraling whitefly Aleurodicus dispersus, in Benin, West Africa]Niche separation between Encarsia dispersa and Encarsia guadeloupae, two biological control agents of the spiraling whitefly Aleurodicus dispersus, in Benin, West Africa

( 1 ) A model for the growth and development of cassava, Manihot esculenta Crantz, as modified by weather, soil nitrogen and water is described, and used in later papers to evaluate damage by exotic cassava pests and the effectiveness of control by natural. (2) Analogous relationships between t...


Gutiérrez, A.P.Wermelinger, B.Schulthess, F.Baumgaertner, J.U.Herren, H.R.Ellis, C.K.Yaninek, John S.[Analysis of biological control of cassava pests in Africa: I. Simulation of carbon, nitrogen and water dynamics in cassava]Analysis of biological control of cassava pests in Africa: I. Simulation of carbon, nitrogen and water dynamics in cassava

Predatory behaviour and reproductive output of the ladybird beetle Stethorus tridens Gordon as function of the tomato red spider mite (TRSM), Tetranychus evansi Baker & Pritchard, densities was investigated in the laboratory. Adult female of S. tridens were isolated in cylindrical plastic arenas,...


Britto, E.P.Gondim, M.G.C.Torres, J.B.Fiaboe, K.K.M.Moraes, G.J.Knapp, M.[Predation and reproductive output of the ladybird beetle Stethorus tridens preying on tomato red spider mite Tetranychus evansi]Predation and reproductive output of the ladybird beetle Stethorus tridens preying on tomato red spider mite Tetranychus evansi

Three gregarious, endoparasitic braconids, a Kenyan strain of Cotesia sesamiae, and the exotic Cotesia flavipes and Cotesia chilonis were imported into Benin as candidates for biological control of stem- and cob borers of maize and stemborers of millet. Host acceptability and host suitability of ...


Hailemichael, Y.Schulthess, F.Smith, Jimmy W.Overholt, W.A.[Physiological suitability of six West African gramineous borers (Lepidoptera: Noctuidae, Pyralidae) for development of Cotesia species complex (Hymenoptera: Braconidae)]Physiological suitability of six West African gramineous borers (Lepidoptera: Noctuidae, Pyralidae) for development of Cotesia species complex (Hymenoptera: Braconidae)
Autor: Herren, H.

The International Institute of Tropical Agriculture (IITA), the Centro International de Agricultura Tropical (CIAT), and many national agricultural research systems (NARS) have devoted considerable attention to cassava improvement. However, many biotic constraints still limit the expansion of thi...


Herren, H.[Cassava pest and disease management: an overview]Cassava pest and disease management: an overview

During the Africa-wide Biological Control project, the neotropical parasitoid Epidinocarsis lopezi (De Santis) (Hymenoptera: Encyrtidae) was established in 26 African countries, causing a satisfactory reduction in the population density of the cassava mealybug Phenacoccus manihoti Mat.-Ferr. (Hom...


Neuenschwander, P.[Control of the cassava mealybug in Africa: lessons from a biological control project]Control of the cassava mealybug in Africa: lessons from a biological control project

The spiralling whitefly, Aleurodicus dispersus Russell (Hom., Aleyrodidae), a native of Central America, was found in continental Africa for the first time early in 1992, and has since spread to five West and Central African countries. It is a polyphagous pest which causes substantial damage also...


Neuenschwander, P.[Spiralling whitefly, Aleurodicus dispersus, a recent invader and new cassava pest]Spiralling whitefly, Aleurodicus dispersus, a recent invader and new cassava pest

Twenty isolates of four species of entomopathogenic hypocrealean fungi (Beauveria bassiana, Beauveria brongniartii, Isaria farinosa, and Metarhizium anisopliae) were found to be pathogenic to adults of the Asian longhorned beetle, Anoplophora glabripennis. Survival times for 50% of the beetles te...


Dubois, T.Hajek, A.Lund, J.Bauer, L.[Virulence of entomopathogenic hypocrealean fungi infecting Anoplophora glabripennis]Virulence of entomopathogenic hypocrealean fungi infecting Anoplophora glabripennis

Aceria guerreronis Keifer pode causar danos severos em coqueiro em vários países ao redor do mundo. Raros estudos têm sido conduzidos para determinar os ácaros predadores associados com A. guerreronis no Brasil. O objetivo deste estudo foi avaliar a prevalência de A. guerreronis e dos predadores ...


Reis, A.C.Gondim, M.G.C.Moraes, G.J.Hanna, R.Schausberger, P.Lawson-Balagbo, L.E.Barros, R.[Population dynamics of Aceria guerreronis Keifer (Acari: Eriophyidae) and associated predators on coconut fruits in Northeastern Brazil]Population dynamics of Aceria guerreronis Keifer (Acari: Eriophyidae) and associated predators on coconut fruits in Northeastern Brazil

This is the eighth publication of a series on the determination of phytoseiid mites of sub-Saharan Africa. Twenty-three phytoseiid species of the tribe Paraseiulini Wainstein are reported in this paper. They refer to all species of this tribe known to occur in sub-Saharan Africa. Six of these spe...


Moraes, G.Zannou, I.Ueckermann, E.A.Oliveira, A.Hanna, R.Yaninek, John S.[Phytoseiid mites of the tribe Paraseiulini Wainstein (Acari: Phytoseiidae) from subSaharan Africa]Phytoseiid mites of the tribe Paraseiulini Wainstein (Acari: Phytoseiidae) from subSaharan Africa

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