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Journal Article 1993

Autor: Cudjoe, A. Neuenschwander, P. Copland, M.

In surveys of cassava fields in the coastal savanna and rain forest zones of Ghana, eight species of ants, mostly in the genera Camponotus, Crematogaster and Pheidole (Hymenoptera: Formicidae), were found attending cassava mealybug, Phenacoccus manihoti Matile-Ferrero. Ant densities were much hig...

Enlace original: https://cgspace.cgiar.org/handle/10568/98669

Investigación en Agricultura
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Cudjoe, A. ,  Neuenschwander, P. ,  Copland, M. ,  [Interference by ants in biological control of the cassava mealybug Phenacoccus manihoti (Hemiptera: Pseudococcidae) in Ghana] ,  Interference by ants in biological control of the cassava mealybug Phenacoccus manihoti (Hemiptera: Pseudococcidae) in Ghana
Journal Article 1997

Autor: Staubli Dreyer, B. Neuenschwander, P. Baumgaertner, J.U. Dorn, S.

The coccinellid, Hyperaspis notata Mulsant, is associated with the mealybugs Phenacoccus manihoti Mat.‐Ferr. and P. herreni Williams, on cassava in southern Brazil and the highlands of Colombia. Brought to Africa to help control the accidentally introduced P. manihoti, its range of target prey an...

Enlace original: https://cgspace.cgiar.org/handle/10568/98698

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Staubli Dreyer, B. ,  Neuenschwander, P. ,  Baumgaertner, J.U. ,  Dorn, S. ,  [Trophic influences on survival, development and reproduction of Hyperaspis notata (Col., Coccinellidae)] ,  Trophic influences on survival, development and reproduction of Hyperaspis notata (Col., Coccinellidae)
Journal Article 1994

Autor: Thielen, R. Ajuonu, O. Schade, V. Neuenschwander, P. Adite, A. Lomer, C.

Water hyacinth,Eichhornia crassipes (Martius) Solms-Laubach (Pontederiaceae) was first reported in Bénin in 1977 and about 10 years later became the major floating water weed in the south east, obstructing boat traffic and fisheries. Water hyacinth multiplies in permanently fresh water in the swa...

Enlace original: https://cgspace.cgiar.org/handle/10568/100904

Investigación en Agricultura
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Thielen, R. ,  Ajuonu, O. ,  Schade, V. ,  Neuenschwander, P. ,  Adite, A. ,  Lomer, C. ,  [Importation, releases, and establishment of Neochetina spp. (col., curculionidae) for the biological control of water hyacinth, Eichhomia crassipes CLil., Pontederiaceae), Benin, West Africa] ,  Importation, releases, and establishment of Neochetina spp. (col., curculionidae) for the biological control of water hyacinth, Eichhomia crassipes CLil., Pontederiaceae), Benin, West Africa
Journal Article 2003

Autor: Dixon, Alfred G.O. Bandyopadhyay, Ranajit Coyne, D.L. Ferguson, M. Ferris, R.S.B. Hanna, R. Hughes, J. Ingelbrecht, I. Legg, J.P. Mahungu, N.M. Manyong, Victor M. Mowbray, D. Neuenschwander, P. Whyte, J. Hartmann, P. Ortiz, R.

Cassava(Manihot esculenta), a root crop originating in Tropical America, has been called Africa’s food insurance but vital as that is, it has the potential to be much more. Already, cassava provides more than half of the dietary calories for over 200 million people in sub-Saharan Africa (about ha...

Enlace original: https://cgspace.cgiar.org/handle/10568/96342

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Dixon, Alfred G.O. ,  Bandyopadhyay, Ranajit ,  Coyne, D.L. ,  Ferguson, M. ,  Ferris, R.S.B. ,  Hanna, R. ,  Hughes, J. ,  Ingelbrecht, I. ,  Legg, J.P. ,  Mahungu, N.M. ,  Manyong, Victor M. ,  Mowbray, D. ,  Neuenschwander, P. ,  Whyte, J. ,  Hartmann, P. ,  Ortiz, R. ,  [Cassava: from poor farmers crop to pacesetter of African rural development] ,  Cassava: from poor farmers crop to pacesetter of African rural development
Journal Article 1992

Autor: Boavida, C. Neuenschwander, P. Schulthess, F.

The spatial dispersion pattern and the intracanopy distribution of the mango mealybug, Rastrococcus invadens Williams, were assessed during one year in a small mango plantation, in order to develop sampling plans and facilitate sampling in mango trees. Mean number of mango mealybugs per leaf diff...

Enlace original: https://cgspace.cgiar.org/handle/10568/103272

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Boavida, C. ,  Neuenschwander, P. ,  Schulthess, F. ,  [Spatial distribution of Rastrococcus invadens Williams (Hom., Pseudococcidae) in mango trees] ,  Spatial distribution of Rastrococcus invadens Williams (Hom., Pseudococcidae) in mango trees
Journal Article 2014

Autor: Goergen, Georg E. Ajuonu, O. Kyofa-Boamah, M.E. Umeh, V. Bokonon-Ganta, A.H. Tamo, M. Neuenschwander, P.
Enlace original: https://cgspace.cgiar.org/handle/10568/75899

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Goergen, Georg E. ,  Ajuonu, O. ,  Kyofa-Boamah, M.E. ,  Umeh, V. ,  Bokonon-Ganta, A.H. ,  Tamo, M. ,  Neuenschwander, P. ,  [Classical biological control of Papaya mealybug in West Africa] ,  Classical biological control of Papaya mealybug in West Africa
Journal Article 2017-08-30

Autor: Neuenschwander, P. Adomou, A.C.

In a twenty-year effort at Drabo, southern Benin, small remnant forests, young fallow and agricultural fields were linked and rehabilitated to develop a 14 ha forest reserve. Forest regrowth was encouraged by managing the natural growth of the local fallow vegetation and by bringing in seeds and ...

Enlace original: https://cgspace.cgiar.org/handle/10568/83519

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Neuenschwander, P. ,  Adomou, A.C. ,  [Reconstituting a rainforest patch in southern Benin for the protection of threatened plants] ,  Reconstituting a rainforest patch in southern Benin for the protection of threatened plants
Journal Article 2002

Autor: Le Gall, P. Goergen, Georg E. Neuenschwander, P.

South Eastern Ghana and the south of Togo and Benin constitute a biogeographically remarkable area, called the Dahomey Gap, whose entomological fauna is stilliittie known despite its unique features. The geographical barrier separating this region from the two forest blocks with wetter climates, ...

Enlace original: https://cgspace.cgiar.org/handle/10568/99967

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Le Gall, P. ,  Goergen, Georg E. ,  Neuenschwander, P. ,  [Les insectes et le Sillon Dahomeen: fragmentation et refuges forestiers] ,  Les insectes et le Sillon Dahomeen: fragmentation et refuges forestiers
Journal Article 1992

Autor: Goergen, Georg E. Neuenschwander, P.

Different combinations of insects belonging to three trophic levels were released in large cages with hydroponie cultures of cassava in a greenhouse. The cassava mealybug (CM )' Phenacoccus manihoti Matile-Ferrero (Horn., Pseudococcidae) was applied at two initial infestation densities to cassava...

Enlace original: https://cgspace.cgiar.org/handle/10568/99912

Investigación en Agricultura
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Goergen, Georg E. ,  Neuenschwander, P. ,  [A cage experiment with four trophic levels: cassava plant growth as influenced by cassava mealybud, Phenacoccus manihoti, its parasitoid Epidinocarsis lopezi,and the hyperparasitoids Prochiloneurus insolitus and Chartocerus hyalipennis] ,  A cage experiment with four trophic levels: cassava plant growth as influenced by cassava mealybud, Phenacoccus manihoti, its parasitoid Epidinocarsis lopezi,and the hyperparasitoids Prochiloneurus insolitus and Chartocerus hyalipennis
Journal Article 1991

Autor: Neuenschwander, P. Borowka, R. Phiri, G. Hammans, H. Nyirenda, S. Kapeya, E.H. Gadabu, A.

From 1985 to 1989 five large scale surveys were made to document the spread of the cassava mealybug (CM) Phenacoccus manihoti Matile‐Ferrero (Hom., Pseudococcidae) and the releases and successful establishment of its exotic parasitoid Epidinocarsis lopezi (De Santis) (Hym., Encyrtidae) through mo...

Enlace original: https://cgspace.cgiar.org/handle/10568/100011

Investigación en Agricultura
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Neuenschwander, P. ,  Borowka, R. ,  Phiri, G. ,  Hammans, H. ,  Nyirenda, S. ,  Kapeya, E.H. ,  Gadabu, A. ,  [Biological control of the cassava mealybug, Phenacoccus manihoti (Hom., Pseudococcidae), by Epidinocarsis lopezi (Hym., Encyrtidae) in Malawi] ,  Biological control of the cassava mealybug, Phenacoccus manihoti (Hom., Pseudococcidae), by Epidinocarsis lopezi (Hym., Encyrtidae) in Malawi

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