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Conference Paper 2003

Autor: Legg, J.P. Thresh, J.M.

Cassava plays a key role in the food security of sub-Saharan Africa, but as a vegetatively propagated crop, it is particularly vulnerable to the effects of virus diseases and these therefore represent a major threat to the livelihoods of millions of Africans. Nine viruses have been isolated from ...

Enlace original: https://cgspace.cgiar.org/handle/10568/96502

Investigación en Agricultura
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Legg, J.P. ,  Thresh, J.M. ,  [Cassava virus diseases in Africa] ,  Cassava virus diseases in Africa
Conference Paper 2012

Autor: Tamo, M. Beed, Fen D. Goergen, Georg E. Hanna R Coyne, D. Asten, Piet J.A. van Legg, J.P.

Recent and current efforts at IITA to assess risks due to the various biotic stresses, arthropod pests and diseases, are presented for different cropping systems. In the case of cassava arthropod pests, the focus is on temperature-mediated interactions between the pest and its natural enemy which...

Enlace original: https://cgspace.cgiar.org/handle/10568/42095

Investigación en Agricultura
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Tamo, M. ,  Beed, Fen D. ,  Goergen, Georg E. ,  Hanna R ,  Coyne, D. ,  Asten, Piet J.A. van ,  Legg, J.P. ,  [Risk assessment and modelling: IITA] ,  Risk assessment and modelling: IITA
Conference Paper 2007

Autor: Tata-Hangy, K.W. Legg, J.P. Hanna, R. Toko, M. Lema, K.M. Dixon, A. Mahungu, N.M.

A countrywide survey on cassava constraints in D.R. Congo was initiated in 2002 and completed in 2004 with the aim of assessing the health status of cassava in various agro-ecological zones of the 11 provinces of the country. The survey permitted to update the list of diseases and pests that cont...

Enlace original: https://cgspace.cgiar.org/handle/10568/90614

Investigación en Agricultura
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Tata-Hangy, K.W. ,  Legg, J.P. ,  Hanna, R. ,  Toko, M. ,  Lema, K.M. ,  Dixon, A. ,  Mahungu, N.M. ,  [Incidence and distribution of cassava diseases and pests in the Democratic Republic of Congo] ,  Incidence and distribution of cassava diseases and pests in the Democratic Republic of Congo
Conference Paper 2015

Autor: Hernández Nopsa, J.F. Xing, Y. Andrade-Piedra, J.L. Beed, Fen D. Blomme, Guy Carvajal Yepes, Mónica Coyne, D.L. Forbes, G. Kreuze, J.F. Kroschel, J. Kumar, L. Legg, J.P. Parker, M. Schulte-Geldermann, Elmar Garrett, K.A.
Enlace original: https://cgspace.cgiar.org/handle/10568/69480

Investigación en Agricultura
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Hernández Nopsa, J.F. ,  Xing, Y. ,  Andrade-Piedra, J.L. ,  Beed, Fen D. ,  Blomme, Guy ,  Carvajal Yepes, Mónica ,  Coyne, D.L. ,  Forbes, G. ,  Kreuze, J.F. ,  Kroschel, J. ,  Kumar, L. ,  Legg, J.P. ,  Parker, M. ,  Schulte-Geldermann, Elmar ,  Garrett, K.A. ,  [Invasion and saturation risk of pathogens and pests based on global cropland connectivity: the case of banana, cassava, potato, sweet potato, and yam] ,  Invasion and saturation risk of pathogens and pests based on global cropland connectivity: the case of banana, cassava, potato, sweet potato, and yam
Conference Paper 2006

Autor: Okwusi, M. Ogbe, F. Nwauzor, E.C. Asumugha, G.N. Mbanasor, E. Akinpelu, A.O. Legg, J.P. Emehute, J.K.
Enlace original: https://cgspace.cgiar.org/handle/10568/91332

Investigación en Agricultura
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Okwusi, M. ,  Ogbe, F. ,  Nwauzor, E.C. ,  Asumugha, G.N. ,  Mbanasor, E. ,  Akinpelu, A.O. ,  Legg, J.P. ,  Emehute, J.K. ,  [Sustainable integrated management of whiteflies as vectors of viruses of cassava and sweetpotato: situation analysis of three farmers groups in south eastern Nigeria] ,  Sustainable integrated management of whiteflies as vectors of viruses of cassava and sweetpotato: situation analysis of three farmers groups in south eastern Nigeria
Conference Paper 2010

Autor: Tata-Hangy, K.W. Legg, J.P. Lema, K.M. Hanna, R. Luyindula, N.

An experiment was conducted over two years (in 2004 and 2005) at the research station of the National Institute of Agricultural Study and Research (INERA) in Mvuazi, Bas-Congo province to determine the incidence of the cassava mosaic disease (CMD) in relation to the source of planting material an...

Enlace original: https://cgspace.cgiar.org/handle/10568/90652

Investigación en Agricultura
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Tata-Hangy, K.W. ,  Legg, J.P. ,  Lema, K.M. ,  Hanna, R. ,  Luyindula, N. ,  [The incidence of the cassava mosaic disease in relation with the source of planting materials and its impact on cassava production] ,  The incidence of the cassava mosaic disease in relation with the source of planting materials and its impact on cassava production
Conference Paper 2012-02

Autor: Bakelana, Z. Legg, J.P. Lema, K.M. Hauser, S. Mahungu, N.M.

La mouche blanche (Bemisia tabaci) est le vecteur de la mosaïque et de la striure brune du manioc. Sa population a toujours été faible dans les champs de manioc. En plus, cet insecte trés polyphage, n'avait jamais constitué d'une manière directe, une menace réelle à la culture du manioc en Afriqu...

Enlace original: https://cgspace.cgiar.org/handle/10568/97318

Investigación en Agricultura
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Bakelana, Z. ,  Legg, J.P. ,  Lema, K.M. ,  Hauser, S. ,  Mahungu, N.M. ,  [Les facteurs determinant labondance du vecteur mouche blanche (Bemisia tabaci, Homoptera : Aleyrodidae) et les types des virus distribues sur le manioc en R.D. Congo] ,  Les facteurs determinant labondance du vecteur mouche blanche (Bemisia tabaci, Homoptera : Aleyrodidae) et les types des virus distribues sur le manioc en R.D. Congo
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

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