Bostrichids of the genus Dinoderus are commonly found as pests of dried cassava chips in West Africa. An illustrated key facilitating the identi®cation of the four most frequent African species, i.e. D. bifoveolatus (Wollaston), D. minutus (Fabricius), D. porcellus Lesne, and D. oblongopunctatus ...
Schäfer, K.
,
Goergen, Georg E.
,
Borgemeister, C.
,
[An illustrated identification key to distinguish four different species of adult Dinoderus (Coleoptera: Bostrichidae), commonly attacking dried cassava chips in West Africa]
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An illustrated identification key to distinguish four different species of adult Dinoderus (Coleoptera: Bostrichidae), commonly attacking dried cassava chips in West Africa
Arthropod assemblages were examined in Lama forest reserve, a protected area situated in the Dahomey gap, southern Benin, composed of plantations, degraded forest and remnants of natural forest. The objectives were to compare assemblages in relation to forest type and use, to elucidate the value ...
Lachat, T.
,
Attignon, S.
,
Djego, J.
,
Goergen, Georg E.
,
Nagel, P.
,
Sinsin, B.
,
Peveling, R.
,
[Arthropod diversity in Lama forest reserve (South Benin), a mosaic of natural, degraded and plantation forests]
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Arthropod diversity in Lama forest reserve (South Benin), a mosaic of natural, degraded and plantation forests
Au total, 22 échantillons d’abeilles ont été constitués suivant les critères de distinction des apiculteurs interviewés et ont été soumis à l’identification au Centre de Contrôle Biologique pour l’Afrique (BCCA) de l’Institut International d’Agriculture Tropical (IITA). Tous les échantillons ont ...
A total of 22 honeybees samples are collected according to the interviewed honeybee farmers criteria distinction and are identified in Biologic control Centre for Africa (BCCA) in IITA (Benin). The samples are kept in alcohol reduced at 50 %. From the results analysis and despite the difference w...
Hounkpe, N.
,
Mensah, G.A.
,
Koutinhouin, B.
,
Pomalegni, S.
,
Goergen, Georg E.
,
[Typisation des abeilles melliferes dans le Nord Benin.]
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Typisation des abeilles melliferes dans le Nord Benin.
Lachat, T.
,
Peveling, R.
,
Attignon, S.
,
Goergen, Georg E.
,
Sinsin, B.
,
Nagel, P.
,
[Saproxylic beetle assemblages on native and exotic snags in a West African tropical forest]
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Saproxylic beetle assemblages on native and exotic snags in a West African tropical forest
The identification of Afrotropical hoverflies is very difficult because of limited recent taxonomic revisions and the lack of comprehensive identification keys. In order to assist in their identification, and to improve the taxonomy of this group, we constructed a reference dataset of 513 COI bar...
Jordaens, K.
,
Goergen, Georg E.
,
Virgilio, M.
,
Backeljau, B.
,
Vokaer, A.
,
Meyer, M. de
,
[DNA Barcoding to Improve the Taxonomy of the Afrotropical Hoverflies (Insecta: Diptera: Syrphidae)]
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DNA Barcoding to Improve the Taxonomy of the Afrotropical Hoverflies (Insecta: Diptera: Syrphidae)
Parasitism of noctuid stemborer eggs was assessed in monthly surveys in maize fields in southern Benin, from May 1995 to October 1996, and on alternative hosts, i.e. wild grasses, during the dry season from November 1995 to February 1996. Sesamia calamistis was the most prevalent stemborer specie...
Schulthess, F.
,
Chabi-Olaye, A.
,
Goergen, Georg E.
,
[Seasonal fluctuations of noctuid stemborer egg parasitism in southern Benin with special reference to Sesamia calamistis Hampson (Lepidoptera:Noctuidae) and Telenomus spp (Hymenoptera:Scelionidae) on maize]
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Seasonal fluctuations of noctuid stemborer egg parasitism in southern Benin with special reference to Sesamia calamistis Hampson (Lepidoptera:Noctuidae) and Telenomus spp (Hymenoptera:Scelionidae) on maize
This paper discusses the conservation of biodiversity and the sustainable use of natural resources in the African continent and the role of insect biodiversity for the sustainable development of natural resources. The arthropod reference collection at the Agricultural Research for Development in ...
Goergen, Georg E.
,
[Insect biodiversity for sustainable management of natural resources]
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Insect biodiversity for sustainable management of natural resources
We collected twigs of Lannea nigritiana (Sc. Elliot) Keay attacked by the girdling cerambycid Analeptes trifasciata F. in the Lama forest of central Benin, West Africa. Emergence data from A. trifasciata wood samples revealed a diverse insect fauna, which consisted of 27 primarily coleopteran spe...
Borgemeister, C.
,
Goergen, Georg E.
,
Tchabi, A.
,
Awande, S.
,
Markham, R.
,
Scholz, D.
,
[Exploitation of a woody host plant and cerambycidassociated volatiles as hostfinding cues by the larger grain borer (Coleoptera: Bostrichidae)]
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Exploitation of a woody host plant and cerambycidassociated volatiles as hostfinding cues by the larger grain borer (Coleoptera: Bostrichidae)
The endophagous hyperparasitoid Prochiloneurus insolitus (Alam) was offered various stages of Epidinocarsis lopezi (De Santis), a primary parasitoid of the cassava mealybug (CM) Phenacoccus manihoti (Matile-Ferrero). Embryos were surrounded by a trophamnion. Larval development involved four insta...
Goergen, Georg E.
,
Neuenschwander, P.
,
[Biology of Prochiloneurus insolitus (Alam) (Hymenoptera, Encyrtidae), a hyperparasitoid on mealybugs (Homoptera, Pseudococcidae): immature morphology, host acceptance and host range in west Africa]
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Biology of Prochiloneurus insolitus (Alam) (Hymenoptera, Encyrtidae), a hyperparasitoid on mealybugs (Homoptera, Pseudococcidae): immature morphology, host acceptance and host range in west Africa
The biology and behaviour of the signiphorid Chartocerus hyaipennis (HAYAT) were studied in the laboratory on Epidinocarsis lopezi (DE SANTlS), a parasitoid of the cassava mealybug Phenacoccus manihoti MATlLE-FERRERO. Only mummified secondary hosts, i.e. mealybugs, were accepted for ovi-position....
Goergen, Georg E.
,
Neuenschwander, P.
,
[Chartocerus hyalipennis (Hayat) (Hym: Signiphoridae), a gregarious hyperparasitoid on mealybugs (Hom.: pseudococcidae): biology and host range in west Africa]
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Chartocerus hyalipennis (Hayat) (Hym: Signiphoridae), a gregarious hyperparasitoid on mealybugs (Hom.: pseudococcidae): biology and host range in west Africa