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Journal Article 2017-09-09

Autor: Manju, E.B. Fokunang, C.N. Mbong, G.A. Tima, T.S. Suh, C. Tembe-Fokunang, E.A. Hanna, R.

The study was conducted in the research field sites of the Institute of Agricultural Research (IRAD), Bambui, North West Region, (IRAD), Ekona South West Region and the International Institute of Tropical Agriculture (IITA) Nkolbisson, Yaoundé, Center Region of Cameroon. Four cultivars of taro (D...

Enlace original: https://cgspace.cgiar.org/handle/10568/87989

Investigación en Agricultura
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Manju, E.B. ,  Fokunang, C.N. ,  Mbong, G.A. ,  Tima, T.S. ,  Suh, C. ,  Tembe-Fokunang, E.A. ,  Hanna, R. ,  [Impact of fungicide application on taro leaf blight disease in three regions of Cameroon] ,  Impact of fungicide application on taro leaf blight disease in three regions of Cameroon
Conference Paper 2007

Autor: Toko, M. Hanna, R. Legg, J.P. Andrade, M.I. Jone, A. Agboton, B. Otema, M.A. Okao-Okuja, G. Obonyo, R. Mambo, E.

Two countrywide surveys were conducted in April-May and May-June 2004 throughout the cassava growing belt of Mozambique including several provinces: Gaza, Inhambane, Sofala, Manica, Zambezia, Nampula and Cabo Delgado. Both surveys were planned to assess the distribution, incidence and damage seve...

Enlace original: https://cgspace.cgiar.org/handle/10568/90602

Investigación en Agricultura
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Toko, M. ,  Hanna, R. ,  Legg, J.P. ,  Andrade, M.I. ,  Jone, A. ,  Agboton, B. ,  Otema, M.A. ,  Okao-Okuja, G. ,  Obonyo, R. ,  Mambo, E. ,  [Distribution, incidence and severity of cassava diseases and pests in Mozambique] ,  Distribution, incidence and severity of cassava diseases and pests in Mozambique
Journal Article 2006

Autor: Tata-Hangy, K.W. Lema, K. Ndambi, N. Lutete, D. Hanna, R. Toko, M. Nkakwa, A.

The African root and tuber scale insect (ARTS)(Stictococcus vayssierei. Richard) has increasingly become a major pest of cassava in the forest areas of the Bas-Fleuve District in the most western province of the Democratic Republic of Congo where it was known since long ago without any noticeable...

La Cochenille Africaine des Racines et Tubercules(CART) Stictococcus vayssierei Richard estdevenu un ravageur majeur dans les parties desfor6ts secondaires du district du Bas-Fleuve dansla province du Bas-Congo en R6publiqueD6mocratique du Congo oir cet insecte est connudepuis de longues dates sa...

Enlace original: https://cgspace.cgiar.org/handle/10568/91763

Investigación en Agricultura
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Tata-Hangy, K.W. ,  Lema, K. ,  Ndambi, N. ,  Lutete, D. ,  Hanna, R. ,  Toko, M. ,  Nkakwa, A. ,  [Notes on the African root and tuber scale, Stictococcus vayssierei Richard, a recent reported cassava pest in the BasCongo Province of the Democratic Republic of Congo] ,  Notes on the African root and tuber scale, Stictococcus vayssierei Richard, a recent reported cassava pest in the BasCongo Province of the Democratic Republic of Congo
Journal Article 2006

Autor: Tindo, M. Doumtsop, A. Goergen, Georg E. Hanna, R.

The African root and tuber scale Stictococcus vayssierei Richard is the only known hypogeal species of the family Stictococcidae. Its wide range of host plants together with concurrently field observed differences in host preference provided evidence of polyphagy or the involvement of more than a...

La cochenille Africaine des plantes it racines et tubercules Stictococcus vayssierei Richard est l'unique espece souterraine decrite appartenant it la farnille des Stictococcidae. La large gamme des plantes attaquees ainsi que les differences de preference observees suggerent l'implication de plu...

Enlace original: https://cgspace.cgiar.org/handle/10568/91775

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Tindo, M. ,  Doumtsop, A. ,  Goergen, Georg E. ,  Hanna, R. ,  [Morphological description and illustration of the female developmental stages of Stictococcus vayssierei (Homoptera: Stictoccocidae)] ,  Morphological description and illustration of the female developmental stages of Stictococcus vayssierei (Homoptera: Stictoccocidae)
Journal Article 2006

Autor: Adango, E. Onzo, A. Hanna, R. Atachi, P. James, B.

A survey of the mite fauna associated with Amaranthus cruentus L. (amaranth), Solanum macrocarpon L. (Gboma) and S. aethiopicum L. (African eggplant), three major indigenous vegetables produced in Benin, was carried out from August to October 2004 both at IITA-Benin station and on a vegetable far...

Un inventaire de la faune des acariens associes a Amaral1.thus cruentus L. (amarante), Solanum macrocarpon L. (Gboma), et SoLanum aethiopicwn L. (aubergin fricaine), h•ois principaux legumes indigenes cultives au Benin, a ete entrepris d'aout a octobre 2004 sur la Station de IITA Benin et sur Ie ...

Enlace original: https://cgspace.cgiar.org/handle/10568/91774

Investigación en Agricultura
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Adango, E. ,  Onzo, A. ,  Hanna, R. ,  Atachi, P. ,  James, B. ,  [Inventaire de la faune des acariens sur Amaranthus cruentus L. (Amaranthaceae); Solanum macrocarpon L. et Solanum aethiopicum L. (Solanaceae) dans le SudBenin] ,  Inventaire de la faune des acariens sur Amaranthus cruentus L. (Amaranthaceae); Solanum macrocarpon L. et Solanum aethiopicum L. (Solanaceae) dans le SudBenin
Journal Article 2005

Autor: Zannou, I. Hanna, R. Moraes, G.J. de Kreiter, S. Phiri, G. Jone, A.

Consideration of possible side-effects of exotic biological control agents on their new environments is a necessary step in classical biological control programs. The evaluation of such effects usually requires the knowledge of the fauna present in those environments prior to introduction of cont...

Enlace original: https://cgspace.cgiar.org/handle/10568/91807

Investigación en Agricultura
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Zannou, I. ,  Hanna, R. ,  Moraes, G.J. de ,  Kreiter, S. ,  Phiri, G. ,  Jone, A. ,  [Mites (Acari) of cassava (Manihot esculenta Crantz) habitat in southern Africa] ,  Mites (Acari) of cassava (Manihot esculenta Crantz) habitat in southern Africa
Journal Article 2008

Autor: Lawson-Balagbo, L.M. Gondim, M.G.C. Moraes, G.J. de Hanna, R. Schausberger, P.

Coconut is an important crop in tropical and subtropical regions. Among the mites that infest coconut palms, Aceria guerreronis Keifer is economically the most important. We conducted surveys throughout the coconut growing areas of Brazil. Samples were taken from attached coconuts, leaflets, fall...

Enlace original: https://cgspace.cgiar.org/handle/10568/90804

Investigación en Agricultura
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Lawson-Balagbo, L.M. ,  Gondim, M.G.C. ,  Moraes, G.J. de ,  Hanna, R. ,  Schausberger, P. ,  [Exploration of the acarine fauna on coconut palm in Brazil with emphasis on Aceria guerreronis (Acari: Eriophyidae) and its natural enemies] ,  Exploration of the acarine fauna on coconut palm in Brazil with emphasis on Aceria guerreronis (Acari: Eriophyidae) and its natural enemies
Journal Article 2005

Autor: Zannou, I. Hanna, R. Moraes, G.J. de Zundel, C.

Two new mite species of the family Phytoseiidae (Acari: Mesostigmata), Neoseiulus yanineki sp.nov.and Typhlodromips cameroonensis sp. nov., are described from Cameroon, Central Africa.

Enlace original: https://cgspace.cgiar.org/handle/10568/91806

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Zannou, I. ,  Hanna, R. ,  Moraes, G.J. de ,  Zundel, C. ,  [Two new species of phytoseiid mites (Acari: Phytoseiidae) from Cameroon, Central Africa] ,  Two new species of phytoseiid mites (Acari: Phytoseiidae) from Cameroon, Central Africa
Journal Article 2018-12-07

Autor: Dongmo, M.A.K. Bonebrake, T.C. Hanna, R. Fomena, A.

Many organisms exhibit changes in phenotypic traits as a response to seasonal environmental variation. We investigated the role of habitat in generating seasonal polyphenism in different populations of the light bush brown butterfly Bicyclus dorothea (Cramer, 1779) (Lepidoptera: Nymphalidae) in C...

Enlace original: https://cgspace.cgiar.org/handle/10568/103502

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Dongmo, M.A.K. ,  Bonebrake, T.C. ,  Hanna, R. ,  Fomena, A. ,  [Seasonal polyphenism in Bicyclus dorothea (Lepidoptera: Nymphalidae) across different habitats in Cameroon] ,  Seasonal polyphenism in Bicyclus dorothea (Lepidoptera: Nymphalidae) across different habitats in Cameroon
Journal Article 2011

Autor: Agboton, B. Hanna, R. Tiedemann, A. von

Diagnostic PCR with two specific primer pairs (NEOSSU and 8DDC) were used to monitor the establishment and geographical distribution of Brazilian isolates of Neozygites tanajoae Delalibera, Hajek and Humber (Entomophthorales: Neozygitaceae) released in Benin for the biological control of the cass...

Enlace original: https://cgspace.cgiar.org/handle/10568/80898

Investigación en Agricultura
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Agboton, B. ,  Hanna, R. ,  Tiedemann, A. von ,  [Molecular detection of establishment and geographical distribution of Brazilian isolates of Neozygites tanajoae, a fungus pathogenic to cassava green mite, in Benin (West Africa)] ,  Molecular detection of establishment and geographical distribution of Brazilian isolates of Neozygites tanajoae, a fungus pathogenic to cassava green mite, in Benin (West Africa)

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