Mapping the vulnerability of banana production landscapes in Uganda to banana bunchy top disease
Introduction: Banana bunchy top disease (BBTD) caused by banana bunchy top virus (BBTV) poses a significant threat to Uganda’s food and income security. Methods: To map BBTD spread and inform its management, a delimiting survey was undertaken covering the high-risk zones bordering the Democratic...
| Autores principales: | , , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
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Frontiers Media
2024
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| Acceso en línea: | https://hdl.handle.net/10568/152281 |
| _version_ | 1855525282708979712 |
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| author | Ocimati, Walter Ogwal, Geofrey Tazuba, Anthony Fredrick Kadama Kubiriba, Jerome Tugume, Joab Rockefeller, Erima Okurut, Wilson Mahuku, George Kutunga, David Blomme, Guy |
| author_browse | Blomme, Guy Kubiriba, Jerome Kutunga, David Mahuku, George Ocimati, Walter Ogwal, Geofrey Okurut, Wilson Rockefeller, Erima Tazuba, Anthony Fredrick Kadama Tugume, Joab |
| author_facet | Ocimati, Walter Ogwal, Geofrey Tazuba, Anthony Fredrick Kadama Kubiriba, Jerome Tugume, Joab Rockefeller, Erima Okurut, Wilson Mahuku, George Kutunga, David Blomme, Guy |
| author_sort | Ocimati, Walter |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Introduction: Banana bunchy top disease (BBTD) caused by banana bunchy top virus (BBTV) poses a significant threat to Uganda’s food and income security.
Methods: To map BBTD spread and inform its management, a delimiting survey was undertaken covering the high-risk zones bordering the Democratic Republic of Congo (DR Congo) in the west, Rwanda and Tanzania in the south, and South Sudan in the north. BBTD is endemic in the DR Congo and present in Tanzania and Rwanda. The survey and environmental data were then used to map the vulnerability of Uganda’s banana landscapes.
Results and discussion: BBTD was only confirmed on 9% of sampled farms in north- and midwestern Uganda, with yield losses of 75% to 100%. Farmers observed BBTD over a 0.5–4.4-year period, suggesting a delayed detection. Suckers were the predominate planting materials used, increasing the risk of disease spread. Landscape suitability for BBTD was influenced by precipitation of the driest month, banana presence in 2016, land surface temperature difference (LSTD), the interaction between wind speed and LSTD, isothermality, wind speed, and the normalized difference vegetation index. These variables affect either or both the virus and aphid vector populations. Altitude did not influence the model, possibly due to disease introduction at mid to high altitudes through infected planting materials. The low-lying zones (around River Nile and Lakes Albert, Edward, and Victoria) are highly vulnerable. BBTD risk was low in northeastern Uganda with low banana production. The prediction map shows some suitable landscapes in the southwest that can expose this major banana production zone to BBTD, necessitating proactive measures. |
| format | Journal Article |
| id | CGSpace152281 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Frontiers Media |
| publisherStr | Frontiers Media |
| record_format | dspace |
| spelling | CGSpace1522812025-12-08T10:29:22Z Mapping the vulnerability of banana production landscapes in Uganda to banana bunchy top disease Ocimati, Walter Ogwal, Geofrey Tazuba, Anthony Fredrick Kadama Kubiriba, Jerome Tugume, Joab Rockefeller, Erima Okurut, Wilson Mahuku, George Kutunga, David Blomme, Guy climate change bananas seed systems banana bunchy top virus banana aphids banana bunchy top Introduction: Banana bunchy top disease (BBTD) caused by banana bunchy top virus (BBTV) poses a significant threat to Uganda’s food and income security. Methods: To map BBTD spread and inform its management, a delimiting survey was undertaken covering the high-risk zones bordering the Democratic Republic of Congo (DR Congo) in the west, Rwanda and Tanzania in the south, and South Sudan in the north. BBTD is endemic in the DR Congo and present in Tanzania and Rwanda. The survey and environmental data were then used to map the vulnerability of Uganda’s banana landscapes. Results and discussion: BBTD was only confirmed on 9% of sampled farms in north- and midwestern Uganda, with yield losses of 75% to 100%. Farmers observed BBTD over a 0.5–4.4-year period, suggesting a delayed detection. Suckers were the predominate planting materials used, increasing the risk of disease spread. Landscape suitability for BBTD was influenced by precipitation of the driest month, banana presence in 2016, land surface temperature difference (LSTD), the interaction between wind speed and LSTD, isothermality, wind speed, and the normalized difference vegetation index. These variables affect either or both the virus and aphid vector populations. Altitude did not influence the model, possibly due to disease introduction at mid to high altitudes through infected planting materials. The low-lying zones (around River Nile and Lakes Albert, Edward, and Victoria) are highly vulnerable. BBTD risk was low in northeastern Uganda with low banana production. The prediction map shows some suitable landscapes in the southwest that can expose this major banana production zone to BBTD, necessitating proactive measures. 2024-09-12 2024-09-18T11:16:43Z 2024-09-18T11:16:43Z Journal Article https://hdl.handle.net/10568/152281 en Open Access application/pdf Frontiers Media Ocimati, W.; Ogwal, G.; Tazuba, A.F.K.; Kubiriba, J.; Tugume, J.; Rockefeller, E.; Okurut, W.; Mahuku, G.; Kutunga, D.; Blomme, G. (2024) Mapping the vulnerability of banana production landscapes in Uganda to banana bunchy top disease. Frontiers in Agronomy 6: 1401478. ISSN: 2673-3218 |
| spellingShingle | climate change bananas seed systems banana bunchy top virus banana aphids banana bunchy top Ocimati, Walter Ogwal, Geofrey Tazuba, Anthony Fredrick Kadama Kubiriba, Jerome Tugume, Joab Rockefeller, Erima Okurut, Wilson Mahuku, George Kutunga, David Blomme, Guy Mapping the vulnerability of banana production landscapes in Uganda to banana bunchy top disease |
| title | Mapping the vulnerability of banana production landscapes in Uganda to banana bunchy top disease |
| title_full | Mapping the vulnerability of banana production landscapes in Uganda to banana bunchy top disease |
| title_fullStr | Mapping the vulnerability of banana production landscapes in Uganda to banana bunchy top disease |
| title_full_unstemmed | Mapping the vulnerability of banana production landscapes in Uganda to banana bunchy top disease |
| title_short | Mapping the vulnerability of banana production landscapes in Uganda to banana bunchy top disease |
| title_sort | mapping the vulnerability of banana production landscapes in uganda to banana bunchy top disease |
| topic | climate change bananas seed systems banana bunchy top virus banana aphids banana bunchy top |
| url | https://hdl.handle.net/10568/152281 |
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