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Dorn, Brigitte ThereseMattiacci, LetiziaBellotti, Anthony C.Dorn, Silvia[Host specificity and daytime activity of parasitoids of the Latin American cassava mealybug, Phenacoccus herreni (Sternorrhyncha: Pseudococcidae)]Host specificity and daytime activity of parasitoids of the Latin American cassava mealybug, Phenacoccus herreni (Sternorrhyncha: Pseudococcidae)

The processing of yam into dehydrated chips is used extensively in certain areas of West Africa to stabilize the product. However, the chips are often severely attacked by borers, which can reduce whole stocks to powder within a few months. The level of protection provided by various biological p...


Vernier, PhilippeGeorgen, G.Dossou, R.Letourmy, P.Chaume, J.[Utilization of biological insecticides for the protection of stored yam chips]Utilization of biological insecticides for the protection of stored yam chips

Oecophylla ants are currently used for biological control in fruit plantations in Australia, Asia and Africa and for protein production in Asia. To further improve the technology and implement it on a large scale, effective and fast production of live colonies is de¬sirable. Early colony developm...


Ouagoussounon, I.Sinzogan, A.A.C.Offenberg, J.Adandonon, A.Vayssières, Jean-FrançoisKossou, D.[Pupae transplantation to boost early colony growth in the weaver ant Oecophylla longinoda Latreille (Hymenoptera: Formicidae)]Pupae transplantation to boost early colony growth in the weaver ant Oecophylla longinoda Latreille (Hymenoptera: Formicidae)

The use of commercial inoculants containing non-indigenous arbuscular mycorrhizal fungi (AMF) is an emerging technology towards improving crop production in Africa. The present study aims at evaluating the influence of two strains of commercial arbuscular mycorrhizal fungi (AMF) products, based o...


Tchabi, A.Hountondji, F.C.C.Ogunsola, B.Lawouin, L.Coyne, D.L.Wiemken, A.Oehl, F.[The Influence of Arbuscular Mycorrhizal Fungi Inoculation on micro-propagated hybrid yam (Dioscorea spp.) growth and root knot nematode (Meloidogyne spp.) suppression]The Influence of Arbuscular Mycorrhizal Fungi Inoculation on micro-propagated hybrid yam (Dioscorea spp.) growth and root knot nematode (Meloidogyne spp.) suppression

In Benin, the tarsonemid mite Polyphagotarsonemus latus (Banks) (Prostigmata: Tarsonemidae) is a key pest of gboma eggplant Solanum macrocarpon (L.) (Solanales: Solanaceae), a leafy vegetable on which it causes considerable damage to the plants and substantial reduction in yield. Predatory mites ...


Onzo, A.Houedokoho, A.Hanna, R.[Potential of the predatory mite, Amblyseius swirskii to suppress the broad mite, Polyphagotarsonemus latus on the gboma eggplant, Solanum macrocarpon]Potential of the predatory mite, Amblyseius swirskii to suppress the broad mite, Polyphagotarsonemus latus on the gboma eggplant, Solanum macrocarpon

Control of grasshoppers and locusts has traditionally relied on synthetic insecticides, and for emergency situations this is unlikely to change. However, a growing awareness of the environmental issues associated with acridid control as well as the high costs of emergency control are expanding th...


Lomer, C.J.Bateman, R.P.Johnson, D.L.Langewald, J.Thomas, M.[Biological control of locusts and grasshoppers]Biological control of locusts and grasshoppers

In trials conducted in Benin, conidia of Beauveria bassiana were evaluated as a control method against the cowpea weevil, Callosobruchus maculatus, in stored cowpea. In the first trial using a high artificial infestation of C. maculatus in 8-kg batches of cowpea in jerry cans under typical condit...


Cherry, A.J.Abalo, P.Hell, K.Korie, S.[Farm-scale trials to compare the entomopathogenic fungus Beauveria bassiana with pirimiphos methy + deltamethrin and essential oil of lemon grass for protection of stored cowpea against Callosobruchus maculatus (Coleoptera: Bruchidae)]Farm-scale trials to compare the entomopathogenic fungus Beauveria bassiana with pirimiphos methy + deltamethrin and essential oil of lemon grass for protection of stored cowpea against Callosobruchus maculatus (Coleoptera: Bruchidae)

In early 1993, the spiralling whitefly, Aleurodicus dispersus (Russell), was observed in Benin for the first time, inflicting damage to ornamental and shade trees and cassava. The parasitoids Encarsia ?haitiensis Dozier and E. guadeloupae Viggiani were observed in the second half of 1993. They we...


D'Almeida, Y.A.Lys, J.A.Neuenschwander, P.Ajuonu, O.[Impact of two accidentally introduced Encarsia species (Hymenoptera: Aphelinidae) and other biotic and abiotic factors on the spiralling whitefly Aleurodicus dispersus (Russell) (Homoptera: Aleyrodidae) in Benin, West Africa]Impact of two accidentally introduced Encarsia species (Hymenoptera: Aphelinidae) and other biotic and abiotic factors on the spiralling whitefly Aleurodicus dispersus (Russell) (Homoptera: Aleyrodidae) in Benin, West Africa

Studies were carried out between 1992 and 1997 in southwestern Benin to investigate the establishment, spread, and impact of Teretriosoma nigrescens Lewis, a natural enemy of the larger grain borer, Prostephanus truncatus (Horn). Trap data, using the 2-component synthetic aggregation pheromone of...


Borgemeister, C.Djossou, F.Adda, C.Schneider, H.Djomamou, B.Degbey, P.Azoma, B.Markham, R.H.[Establishment, spread, and impact of Teretriosoma nigrescens (Coleoptera: Histeridae), an exotic predator of the larger grain borer (Coleoptera: Bostrichidae) in southwestern Benin]Establishment, spread, and impact of Teretriosoma nigrescens (Coleoptera: Histeridae), an exotic predator of the larger grain borer (Coleoptera: Bostrichidae) in southwestern Benin

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