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Journal Article 2011-11

Autor: Rwegasira, G.M. Momanyi, G. Rey, M.E.C. Kahwa, G. Legg, J.P.

Cassava brown streak disease (CBSD) has been a problem in Tanzania since 1936. Existing literature indicated limited distribution of the disease to low altitudes, usually <100 m above sea level, but the current geographical distribution of the disease was not known. Whether a single or many strai...

Enlace original: https://cgspace.cgiar.org/handle/10568/88168

Investigación en Agricultura
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Rwegasira, G.M. ,  Momanyi, G. ,  Rey, M.E.C. ,  Kahwa, G. ,  Legg, J.P. ,  [Widespread occurrence and diversity of cassava brown streak virus (Potyviridae:Ipomovirus) in Tanzania] ,  Widespread occurrence and diversity of cassava brown streak virus (Potyviridae:Ipomovirus) in Tanzania
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
Journal Article 2017-11-01

Autor: Wosula, Everlyne N. Chen, W. Fei, Z. Legg, J.P.

Bemisia tabaci threatens production of cassava in Africa through vectoring viruses that cause cassava mosaic disease (CMD) and cassava brown streak disease (CBSD). B. tabaci sampled from cassava in eight countries in Africa were genotyped using NextRAD sequencing, and their phylogeny and populati...

Enlace original: https://cgspace.cgiar.org/handle/10568/89949

Investigación en Agricultura
DNA
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Wosula, Everlyne N. ,  Chen, W. ,  Fei, Z. ,  Legg, J.P. ,  [Unravelling the genetic diversity among cassava Bemisia tabaci whiteflies using NextRAD Sequencing] ,  Unravelling the genetic diversity among cassava Bemisia tabaci whiteflies using NextRAD Sequencing
Journal Article 2017

Autor: Boni, S.B. Rugumamu, C.P. Gerling, D. Nokoe, K.S. Legg, J.P.

The sweetpotato whitefly, Bemisia tabaci (Gennadius) is the vector of the cassava mosaic geminiviruses (CMGs) that cause cassava mosaic disease (CMD). Synergistic interactions between B. tabaci and CMGs have been hypothesized as a cause of whitefly “super-abundance,” which has been a key factor b...

Enlace original: https://cgspace.cgiar.org/handle/10568/88248

Investigación en Agricultura
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Boni, S.B. ,  Rugumamu, C.P. ,  Gerling, D. ,  Nokoe, K.S. ,  Legg, J.P. ,  [Interactions Between Cassava Mosaic Geminiviruses and Their Vector, Bemisia tabaci (Hemiptera: Aleyrodidae)] ,  Interactions Between Cassava Mosaic Geminiviruses and Their Vector, Bemisia tabaci (Hemiptera: Aleyrodidae)
Book Chapter 2012

Autor: Legg, J.P.

Cassava is an important crop in many parts of the tropics, but it plays a particularly vital role in sustaining food security in sub-Saharan Africa. Diseases are the greatest biotic constraint to cassava production worldwide. Although the diversity of cassava pathogens is greatest in Latin Americ...

Enlace original: https://cgspace.cgiar.org/handle/10568/82553

Investigación en Agricultura
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Legg, J.P. ,  [Cassava diseases: ecology and control] ,  Cassava diseases: ecology and control
Journal Article 1998

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

A survey was carried out of African cassava mosaic geminivirus and cassava brown streak virus diseases (ACMD and CBSD) in Tanzania. ACMD occurred throughout the country at low to moderate incidences in the fifteen different regions surveyed (1- 64%). The incidence was generally higher along the c...

Enlace original: https://cgspace.cgiar.org/handle/10568/96058

Investigación en Agricultura
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Legg, J.P. ,  Raya, M. ,  [Survey of cassava virus diseases in Tanzania] ,  Survey of cassava virus diseases in Tanzania
Brief 2019

Autor: Okonya, J. Mudege, Netsayi N. Rietveld, A.M. Nduwayezu, A. Kantungeko, D. Hakizimana, B.M. Nyaga, J.N. Blomme, Guy Legg, J.P. Kroschel, J.
Enlace original: https://cgspace.cgiar.org/handle/10568/106004

Investigación en Agricultura
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Okonya, J. ,  Mudege, Netsayi N. ,  Rietveld, A.M. ,  Nduwayezu, A. ,  Kantungeko, D. ,  Hakizimana, B.M. ,  Nyaga, J.N. ,  Blomme, Guy ,  Legg, J.P. ,  Kroschel, J. ,  [Women and RTB crops in Rwanda and Burundi: Do men decide, and women work?] ,  Women and RTB crops in Rwanda and Burundi: Do men decide, and women work?
Journal Article 2019-06

Autor: Carvajal-Yepes, M. Cardwell, K. Nelson, A. Garrett, K.A. Giovani, B. Saunders, D.G.O. Kamoun, S. Legg, J.P. Verdier, Valérie Lessel, J. Neher, R.A. Day, R. Pardey, P. Gullino, M.L. Records, A.R. Bextine, B. Leach, J.E. Staiger, S. Tohme, Joseph M.

To satisfy a growing demand for food, global agricultural production must increase by 70% by 2050. However, pests and crop diseases put global food supplies at risk. Worldwide, yield losses caused by pests and diseases are estimated to average 21.5% in wheat, 30.0% in rice, 22.6% in maize, 17.2% ...

Enlace original: https://cgspace.cgiar.org/handle/10568/102422

Investigación en Agricultura
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Carvajal-Yepes, M. ,  Cardwell, K. ,  Nelson, A. ,  Garrett, K.A. ,  Giovani, B. ,  Saunders, D.G.O. ,  Kamoun, S. ,  Legg, J.P. ,  Verdier, Valérie ,  Lessel, J. ,  Neher, R.A. ,  Day, R. ,  Pardey, P. ,  Gullino, M.L. ,  Records, A.R. ,  Bextine, B. ,  Leach, J.E. ,  Staiger, S. ,  Tohme, Joseph M. ,  [A global surveillance system for crop diseases: global preparedness minimizes the risk to food supplies] ,  A global surveillance system for crop diseases: global preparedness minimizes the risk to food supplies
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

Investigación en Agricultura
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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 2004-11

Autor: Legg, J.P. Fauquet, Claude M.

Cassava mosaic disease (CMD) caused by cassava mosaic geminiviruses (CMGs) (Geminiviridae:Begomovirus) is undoubtedly the most important constraint to the production of cassava in Africa at the outset of the 21st century. Although the disease was recorded for the first time in the latter part of ...

Enlace original: https://cgspace.cgiar.org/handle/10568/96414

Investigación en Agricultura
Enlace permanente

Legg, J.P. ,  Fauquet, Claude M. ,  [Cassava mosaic geminiviruses in Africa] ,  Cassava mosaic geminiviruses in Africa

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