Survey of cassava virus diseases in Tanzania
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 coas...
| Autores principales: | , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Informa UK Limited
1998
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/96058 |
| _version_ | 1855527918175780864 |
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| author | Legg, James P. Raya, M. |
| author_browse | Legg, James P. Raya, M. |
| author_facet | Legg, James P. Raya, M. |
| author_sort | Legg, James P. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | 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 coastalplain than in higher altitude areas in the interior. There was a significant correlation between numbers ofadults ofthe whitefly vector, Bemisia tabaci, and incidence of recently infected plants ( R = 0.77, p < 0.01), although most infection was attributable to the use of infected cuttings. CBSD was more restricted in distribution and, where present, incidence was low to moderate (1- 36%). Cassava plantings along the southern border with Mozambique link the highest incidence area on the south-east coast near Mtwara, with the other important area ofCBSD incidence along the shore ofLake Malawi. The effects of climatic parameters on ACMD and CBSD incidence are discussed. The survey data suggest that both diseases could be controlled in Tanzania by the use of phytosanitation which involves the use of disease-free planting material and the removal (roguing) of diseased plants. |
| format | Journal Article |
| id | CGSpace96058 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1998 |
| publishDateRange | 1998 |
| publishDateSort | 1998 |
| publisher | Informa UK Limited |
| publisherStr | Informa UK Limited |
| record_format | dspace |
| spelling | CGSpace960582024-05-15T05:11:45Z Survey of cassava virus diseases in Tanzania Legg, James P. Raya, M. cassava african cassava mosaic virus geminivirus disease cassava brown streak virus diseases whitefly vector bemisia tabaci 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 coastalplain than in higher altitude areas in the interior. There was a significant correlation between numbers ofadults ofthe whitefly vector, Bemisia tabaci, and incidence of recently infected plants ( R = 0.77, p < 0.01), although most infection was attributable to the use of infected cuttings. CBSD was more restricted in distribution and, where present, incidence was low to moderate (1- 36%). Cassava plantings along the southern border with Mozambique link the highest incidence area on the south-east coast near Mtwara, with the other important area ofCBSD incidence along the shore ofLake Malawi. The effects of climatic parameters on ACMD and CBSD incidence are discussed. The survey data suggest that both diseases could be controlled in Tanzania by the use of phytosanitation which involves the use of disease-free planting material and the removal (roguing) of diseased plants. 1998-01 2018-07-05T06:30:34Z 2018-07-05T06:30:34Z Journal Article https://hdl.handle.net/10568/96058 en Limited Access Informa UK Limited Legg, J. & Raya, M. (1998). Survey of cassava virus diseases in Tanzania. International Journal of Pest Management, 44(1), 17-23. |
| spellingShingle | cassava african cassava mosaic virus geminivirus disease cassava brown streak virus diseases whitefly vector bemisia tabaci Legg, James P. Raya, M. Survey of cassava virus diseases in Tanzania |
| title | Survey of cassava virus diseases in Tanzania |
| title_full | Survey of cassava virus diseases in Tanzania |
| title_fullStr | Survey of cassava virus diseases in Tanzania |
| title_full_unstemmed | Survey of cassava virus diseases in Tanzania |
| title_short | Survey of cassava virus diseases in Tanzania |
| title_sort | survey of cassava virus diseases in tanzania |
| topic | cassava african cassava mosaic virus geminivirus disease cassava brown streak virus diseases whitefly vector bemisia tabaci |
| url | https://hdl.handle.net/10568/96058 |
| work_keys_str_mv | AT leggjamesp surveyofcassavavirusdiseasesintanzania AT rayam surveyofcassavavirusdiseasesintanzania |