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Journal Article 2002

Autor: Neuenschwander, P. Hughes, J. Ogbe, F. Ngatse, J. Legg, J.P.
Enlace original: https://cgspace.cgiar.org/handle/10568/92719

Investigación en Agricultura
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Neuenschwander, P. ,  Hughes, J. ,  Ogbe, F. ,  Ngatse, J. ,  Legg, J.P. ,  [Occurrence of the Uganda variant of East African cassava mosaic virus (EACMVUg) in western Democratic Republic of Congo and the Congo Republic defines the westernmost extent of the CMD pandemic in East/Central Africa] ,  Occurrence of the Uganda variant of East African cassava mosaic virus (EACMVUg) in western Democratic Republic of Congo and the Congo Republic defines the westernmost extent of the CMD pandemic in East/Central Africa
Journal Article 2000

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

Cassava mosaic disease (CMD), now known to be caused by cassava mosaic geminiviruses (Family Geminiviridae; Genus Begomovirus), was first reported in East Africa in 1894. Epidemics occurred in Madagascar and Uganda in the 1930s and 1940s, and more localised rapid spread of CMD was observed in par...

Enlace original: https://cgspace.cgiar.org/handle/10568/92612

Investigación en Agricultura
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Legg, J.P. ,  Thresh, J.M. ,  [Cassava mosaic virus disease in East Africa: a dynamic disease in a changing environment] ,  Cassava mosaic virus disease in East Africa: a dynamic disease in a changing environment
Journal Article 2017

Autor: Ramcharan, A. Baranowski, K. McCloskey, P. Ahmed, B. Legg, J.P. Hughes, D.P.

Cassava is the third largest source of carbohydrates for human food in the world but is vulnerable to virus diseases, which threaten to destabilize food security in sub-Saharan Africa. Novel methods of cassava disease detection are needed to support improved control which will prevent this crisis...

Enlace original: https://cgspace.cgiar.org/handle/10568/89938

Investigación en Agricultura
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Ramcharan, A. ,  Baranowski, K. ,  McCloskey, P. ,  Ahmed, B. ,  Legg, J.P. ,  Hughes, D.P. ,  [Deep learning for image-based cassava disease detection] ,  Deep learning for image-based cassava disease detection
Journal Article 2015-05

Autor: Patil, B.L. Legg, J.P. Kanju, E. Fauquet, Claude M.

Cassava brown streak disease (CBSD) has emerged as the most important viral disease of cassava (Manihot esculenta) in Africa and is a major threat to food security. CBSD is caused by two distinct species of ipomoviruses, Cassava brown streak virus and Ugandan cassava brown streak virus, belonging...

Enlace original: https://cgspace.cgiar.org/handle/10568/76364

Investigación en Agricultura
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Patil, B.L. ,  Legg, J.P. ,  Kanju, E. ,  Fauquet, Claude M. ,  [Cassava brown streak disease: a threat to food security in Africa] ,  Cassava brown streak disease: a threat to food security in Africa
Journal Article 2004-04

Autor: Owor, B. Legg, J.P. Okao‐Okuja, G. Obonyo, R. Kyamanywa, S. Ogenga‐Latigo, M.W.

The effect of cassava mosaic virus disease (CMD) was compared on plants grown from cuttings that were initially virus-free at planting and those infected with a mild strain of East African cassava mosaic virus-Uganda (EACMV-UG). All initially healthy plants developed CMD symptoms within 5 months ...

Enlace original: https://cgspace.cgiar.org/handle/10568/96406

Investigación en Agricultura
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Owor, B. ,  Legg, J.P. ,  Okao‐Okuja, G. ,  Obonyo, R. ,  Kyamanywa, S. ,  Ogenga‐Latigo, M.W. ,  [Field studies of cross protection with cassava Mosaic Geminiviruses in Uganda] ,  Field studies of cross protection with cassava Mosaic Geminiviruses in Uganda
Journal Article 2004-04

Autor: Legg, J.P. Ndjelassili, F. Okao-Okuja, G.

Cassava mosaic disease (CMD), arguably Africa's greatest plant protection problem, has been known to occur in central/West Africa for more than 70 years. There is, however, no published record of the occurrence of CMD or the cassava mosaic geminiviruses (CMGs) that cause it from the central Afric...

Enlace original: https://cgspace.cgiar.org/handle/10568/96407

Investigación en Agricultura
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Legg, J.P. ,  Ndjelassili, F. ,  Okao-Okuja, G. ,  [First report of cassava mosaic disease and cassava mosaic geminiviruses in Gabon] ,  First report of cassava mosaic disease and cassava mosaic geminiviruses in Gabon
Journal Article 1996

Autor: Legg, J.P.

Studies were undertaken to investigate host relationships of populations of Bemisiu tubuci taken from the major crop hosts in Uganda. B. tubuci adults taken from cotton and sweet potato did not colonize cassava. None survived for longer than two days and nymphs emerging from eggs laid on cassava ...

Enlace original: https://cgspace.cgiar.org/handle/10568/101012

Investigación en Agricultura
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Legg, J.P. ,  [Host associated strains within Ugandan populations of the whitefly Bemisia tabaci (Genn.), (Hom., Aleyrodidae)] ,  Host associated strains within Ugandan populations of the whitefly Bemisia tabaci (Genn.), (Hom., Aleyrodidae)
Journal Article 1998

Autor: Legg, J.P. Ogwal, S.

Surveys of the incidence of African cassava mosaic disease (ACMD) and its whitefly vector, Bernisiu tabaci, were made at three-month intervals in 1992 and 1993 along two South-North transects. One was in central and the other in eastern Uganda. ACMD incidence was high within the northern localiti...

Enlace original: https://cgspace.cgiar.org/handle/10568/100991

Investigación en Agricultura
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Legg, J.P. ,  Ogwal, S. ,  [Changes in the incidence of African cassava mosaic geminivirus and the abundance of its whitefly vector along southnorth transects in Uganda] ,  Changes in the incidence of African cassava mosaic geminivirus and the abundance of its whitefly vector along southnorth transects in Uganda
Journal Article 2017

Autor: Thomas-Sharma, Sara Andrade-Piedra, J.L. Carvajal-Yepes, Monica Hernández Nopsa, J.F. Jeger, Michael Jones, Roger Kromann, P. Legg, J.P. Yuen, Jonathan Forbes, G. Garrett, K.A.
Enlace original: https://cgspace.cgiar.org/handle/10568/81225

Investigación en Agricultura
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Thomas-Sharma, Sara ,  Andrade-Piedra, J.L. ,  Carvajal-Yepes, Monica ,  Hernández Nopsa, J.F. ,  Jeger, Michael ,  Jones, Roger ,  Kromann, P. ,  Legg, J.P. ,  Yuen, Jonathan ,  Forbes, G. ,  Garrett, K.A. ,  [A risk assessment framework for seed degeneration: Informing an integrated seed health strategy for vegetatively-propagated crops] ,  A risk assessment framework for seed degeneration: Informing an integrated seed health strategy for vegetatively-propagated crops
Journal Article 2018

Autor: Aregbesola, O.Z. Legg, J.P. Sigsgaard, L. Lund, O.S. Rapisarda, C.

Whiteflies (Hemiptera: Aleyrodidae) are important insect pests causing serious damage to plants and transmitting hundreds of plant viruses. Climate change is expected to influence life history and trophic interactions among plants, whiteflies and their natural enemies. Here, we review the potenti...

Enlace original: https://cgspace.cgiar.org/handle/10568/100662

Investigación en Agricultura
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Aregbesola, O.Z. ,  Legg, J.P. ,  Sigsgaard, L. ,  Lund, O.S. ,  Rapisarda, C. ,  [Potential impact of climate change on whiteflies and implications for the spread of vectored viruses] ,  Potential impact of climate change on whiteflies and implications for the spread of vectored viruses

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