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Journal Article 2019-03-20

Autor: Ramcharan, A. McCloskey, P. Baranowski, K. Mbilinyi, N. Mrisho, L. Ndalahwa, M. Legg, J.P. Hughes, D.P.

Convolutional neural network (CNN) models have the potential to improve plant disease phenotyping where the standard approach is visual diagnostics requiring specialized training. In scenarios where a CNN is deployed on mobile devices, models are presented with new challenges due to lighting and ...

Enlace original: https://cgspace.cgiar.org/handle/10568/105535

Investigación en Agricultura
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Ramcharan, A. ,  McCloskey, P. ,  Baranowski, K. ,  Mbilinyi, N. ,  Mrisho, L. ,  Ndalahwa, M. ,  Legg, J.P. ,  Hughes, D.P. ,  [A mobile-based deep learning model for cassava disease diagnosis] ,  A mobile-based deep learning model for cassava disease diagnosis
Journal Article 1999

Autor: Legg, J.P.

During the 1990s, an epidemic of an unusually severe form of cassava mosaic virus disease (CMD) has expanded to cover virtually all of Uganda, and substantial areas in the neighbouring countries of Kenya, Tanzania, Sudan and the Democratic Republic of Congo. Losses in the generally sensitive loca...

Enlace original: https://cgspace.cgiar.org/handle/10568/96060

Investigación en Agricultura
Enlace permanente
Legg, J.P. ,  [Emergence, spread and strategies for controlling the pandemic of cassava mosaic virus disease in east and central Africa] ,  Emergence, spread and strategies for controlling the pandemic of cassava mosaic virus disease in east and central Africa
Report 2007

Autor: Bigirimana, S. Bizimana, S. Barumbanze, P. Busungu, C. Legg, J.P.
Enlace original: https://cgspace.cgiar.org/handle/10568/91495

Investigación en Agricultura
Enlace permanente
Bigirimana, S. ,  Bizimana, S. ,  Barumbanze, P. ,  Busungu, C. ,  Legg, J.P. ,  [Monitoring and diagnostic survey of cassava mosaic virus disease (CMD) in Burundi] ,  Monitoring and diagnostic survey of cassava mosaic virus disease (CMD) in Burundi
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
Enlace permanente
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
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
Enlace permanente
Legg, J.P. ,  [Cassava diseases: ecology and control] ,  Cassava diseases: ecology and control
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
Enlace permanente
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 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
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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 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
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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

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