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Journal Article 2012

Autor: Mulimbi, W. Phemba, X. Assumani, B. Kasereka, P. Muyisa, S. Ugentho, H. Reeder, R. Legg, J.P. Laurenson, L. Weekes, R. Thom, F.E.F.
Enlace original: https://cgspace.cgiar.org/handle/10568/80843

Investigación en Agricultura
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Mulimbi, W. ,  Phemba, X. ,  Assumani, B. ,  Kasereka, P. ,  Muyisa, S. ,  Ugentho, H. ,  Reeder, R. ,  Legg, J.P. ,  Laurenson, L. ,  Weekes, R. ,  Thom, F.E.F. ,  [First report of Ugandan cassava brown streak virus on cassava in Democratic Republic of Congo] ,  First report of Ugandan cassava brown streak virus on cassava in Democratic Republic of Congo
Journal Article 2016

Autor: Ndunguru, Joseph León, Leandro de Doyle, Catherine D. Sseruwagi, Peter Plata, German Legg, J.P. Thompson, Graham Tohme, Joseph M. Aveling, Theresa Ascencio Ibáñez, Jose T. Hanley Bowdoin, Linda

Cassava mosaic begomoviruses (CMBs) cause cassava mosaic disease (CMD) across Africa and the Indian subcontinent. Like all members of the geminivirus family, CMBs have small, circular single-stranded DNA genomes. We report here the discovery of two novel DNA sequences, designated SEGS-1 and SEGS-...

Cassava mosaic begomoviruses (CMBs) cause cassava mosaic disease (CMD) across Africa and the Indian subcontinent. Like all members of the geminivirus family, CMBs have small, circular single-stranded DNA genomes. We report here the discovery of two novel DNA sequences, designated SEGS-1 and SEGS-...

Enlace original: https://cgspace.cgiar.org/handle/10568/73456

Investigación en Agricultura
Enlace permanente
Ndunguru, Joseph ,  León, Leandro de ,  Doyle, Catherine D. ,  Sseruwagi, Peter ,  Plata, German ,  Legg, J.P. ,  Thompson, Graham ,  Tohme, Joseph M. ,  Aveling, Theresa ,  Ascencio Ibáñez, Jose T. ,  Hanley Bowdoin, Linda ,  [Two Novel DNAs that enhance symptoms and overcome CMD2 resistance to cassava mosaic disease] ,  Two Novel DNAs that enhance symptoms and overcome CMD2 resistance to cassava mosaic disease
Journal Article 2017

Autor: Maruthi, M.N. Jeremiah, S.C. Mohammed, I.U. Legg, J.P.

Cassava brown streak disease (CBSD) is arguably the most dangerous current threat to cassava, which is Africa's most important food security crop. CBSD is caused by two RNA viruses: Cassava brown streak virus (CBSV) and Ugandan cassava brown streak virus (UCBSV). The roles of the whitefly Bemisia...

Enlace original: https://cgspace.cgiar.org/handle/10568/88009

Investigación en Agricultura
Enlace permanente

Maruthi, M.N. ,  Jeremiah, S.C. ,  Mohammed, I.U. ,  Legg, J.P. ,  [The role of the whitefly, Bemisia tabaci (Gennadius), and farmer practices in the spread of cassava brown streak ipomoviruses] ,  The role of the whitefly, Bemisia tabaci (Gennadius), and farmer practices in the spread of cassava brown streak ipomoviruses
Journal Article 2012-04

Autor: Bouwmeester, H.J. Heuvelink, Gerard B.M. Legg, J.P. Stoorvogel, J.J.

Cassava mosaic disease (CMD) seriously affects cassava yields in Africa. This study compared the spatial distribution of CMD using three independent surveys in Rwanda and Burundi. Geostatistical techniques were used to interpolate the pointbased surveys and predict the spatial distributions of di...

Enlace original: https://cgspace.cgiar.org/handle/10568/80873

Investigación en Agricultura
Enlace permanente
Bouwmeester, H.J. ,  Heuvelink, Gerard B.M. ,  Legg, J.P. ,  Stoorvogel, J.J. ,  [Comparison of disease patterns assessed by three independent surveys of cassava mosaic virus disease in Rwanda and Burundi] ,  Comparison of disease patterns assessed by three independent surveys of cassava mosaic virus disease in Rwanda and Burundi
Journal Article 2013

Autor: Zinga, I. Chiroleu, F. Legg, J.P. Lefeuvre, P. Komba, E. Semballa, S. Yandia, S.P. Mandakombo, N. Reynaud, B. Lett, J.

Cassava is a vital crop in Africa and represents the main food crop in Central African Republic (CAR). CAR has recently faced large reductions in cassava yields that have led to a surge in market prices. To better understand the causes of the reduction in yield, we identified biotic constraints t...

Enlace original: https://cgspace.cgiar.org/handle/10568/76030

Investigación en Agricultura
Enlace permanente
Zinga, I. ,  Chiroleu, F. ,  Legg, J.P. ,  Lefeuvre, P. ,  Komba, E. ,  Semballa, S. ,  Yandia, S.P. ,  Mandakombo, N. ,  Reynaud, B. ,  Lett, J. ,  [Epidemiological assessment of cassava mosaic disease in Central African Republic reveals the importance of mixed viral infection and poor health of plant cuttings] ,  Epidemiological assessment of cassava mosaic disease in Central African Republic reveals the importance of mixed viral infection and poor health of plant cuttings
Journal Article 2019-03

Autor: Okonya, J. Ocimati, W. Nduwayezu, A. Kantungeko, D. Niko, N. Blomme, Guy Legg, J.P. Kroschel, J.

Biotic constraints cause major crop losses and, hence, food insecurity in sub-Saharan Africa. This study documented the popularity, production constraints, pests and diseases, farmers’ perceptions on the severity of biotic constraints and the impact of related crop losses on household food securi...

Enlace original: https://cgspace.cgiar.org/handle/10568/100344

Investigación en Agricultura
Enlace permanente
Okonya, J. ,  Ocimati, W. ,  Nduwayezu, A. ,  Kantungeko, D. ,  Niko, N. ,  Blomme, Guy ,  Legg, J.P. ,  Kroschel, J. ,  [Farmer reported pest and disease impacts on root, tuber, and banana crops and livelihoods in Rwanda and Burundi.] ,  Farmer reported pest and disease impacts on root, tuber, and banana crops and livelihoods in Rwanda and Burundi.
Journal Article 2017-10

Autor: Szyniszewska, A.M. Busungu, C. Boni, S.B. Shirima, R. Bouwmeester, H.J. Legg, J.P.

To improve understanding of the dynamics of the cassava mosaic disease (CMD) pandemic front, geospatial approaches were applied to the analysis of 3 years’ data obtained from a 2-by-2° (approximately 222-by-222 km) area of northwestern Tanzania. In total, 80 farmers’ fields were assessed in each ...

Enlace original: https://cgspace.cgiar.org/handle/10568/87969

Investigación en Agricultura
Enlace permanente

Szyniszewska, A.M. ,  Busungu, C. ,  Boni, S.B. ,  Shirima, R. ,  Bouwmeester, H.J. ,  Legg, J.P. ,  [Spatial analysis of temporal changes in the pandemic of severe cassava mosaic disease in Northwestern Tanzania] ,  Spatial analysis of temporal changes in the pandemic of severe cassava mosaic disease in Northwestern Tanzania
Journal Article 2019

Autor: Okonya, J.S. Mudege, Netsayi N. Rietveld, A.M. Nduwayezu, A. Kantungeko, D. Hakizimana, B.M. Nyaga, J.N. Blomme, Guy Legg, J.P. Kroschel, J.

This paper evaluates the determinants of decision-making in relation to the production of four crops (banana, cassava, potato, and sweet potato). Understanding the division of labor and decision-making in crop management may lead to designing better interventions targeted at improving efficiency ...

Enlace original: https://cgspace.cgiar.org/handle/10568/102475

Investigación en Agricultura
Enlace permanente

Okonya, J.S. ,  Mudege, Netsayi N. ,  Rietveld, A.M. ,  Nduwayezu, A. ,  Kantungeko, D. ,  Hakizimana, B.M. ,  Nyaga, J.N. ,  Blomme, Guy ,  Legg, J.P. ,  Kroschel, J. ,  [The role of women in production and management of RTB crops in Rwanda and Burundi: Do men decide, and women work?] ,  The role of women in production and management of RTB crops in Rwanda and Burundi: Do men decide, and women work?
Journal Article 2017

Autor: Tembo, M. Mataa, M. Legg, J.P. Chikoti, Patrick Chiza Ntawuruhunga, Pheneas

Cassava is the main food crop for an estimated 30% of the population in Zambia where yields of 5.8 t/ha are some of the lowest of any major cassava-producing country. A study was conducted to characterize yield responses of Zambian cassava genotypes to cassava mosaic disease (CMD), as well as the...

Enlace original: https://cgspace.cgiar.org/handle/10568/89937

Investigación en Agricultura
Enlace permanente

Tembo, M. ,  Mataa, M. ,  Legg, J.P. ,  Chikoti, Patrick Chiza ,  Ntawuruhunga, Pheneas ,  [Cassava mosaic disease: incidence and yield performance of cassava cultivars in Zambia] ,  Cassava mosaic disease: incidence and yield performance of cassava cultivars in Zambia
Journal Article 2002

Autor: Legg, J.P. French, R. Rogan, D. Okao‐Okuja, G. Brown, J.

During the 1990s, an epidemic of cassava mosaic virus disease caused major losses to cassava production in Uganda. Two factors associated with the epidemic were the occurrence of a novel recombinant begomovirus, EACMV-Ug, and unusually high populations of the whitefly vector, Bemisia tabaci. Here...

Enlace original: https://cgspace.cgiar.org/handle/10568/92725

Investigación en Agricultura
CMD
Enlace permanente
Legg, J.P. ,  French, R. ,  Rogan, D. ,  Okao‐Okuja, G. ,  Brown, J. ,  [A distinct Bemisia tabaci (Gennadius) (Hemiptera: Sternorrhyncha: Aleyrodidae) genotype cluster is associated with the epidemic of severe cassava mosaic virus disease in Uganda] ,  A distinct Bemisia tabaci (Gennadius) (Hemiptera: Sternorrhyncha: Aleyrodidae) genotype cluster is associated with the epidemic of severe cassava mosaic virus disease in Uganda

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