Evaluating combined effects of pesticide and crop nutrition (with N, P, K and Si) on weevil damage in east African highland bananas
Banana weevil (Cosmopolites sordidus, Germar) is a major pest in East African Highland Banana. The influence of crop nutritional status on weevil damage is poorly understood. Nutrient availability affects the nutritional quality of plants for weevils and may affect weevil damage. Here, we evaluate t...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/130622 |
| _version_ | 1855522003224625152 |
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| author | Bukomeko, H. Taulya, G. Schut, A.G.T. Ven, G.W. van de Kubiriba, Jerome Giller, Kenneth E. |
| author_browse | Bukomeko, H. Giller, Kenneth E. Kubiriba, Jerome Schut, A.G.T. Taulya, G. Ven, G.W. van de |
| author_facet | Bukomeko, H. Taulya, G. Schut, A.G.T. Ven, G.W. van de Kubiriba, Jerome Giller, Kenneth E. |
| author_sort | Bukomeko, H. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Banana weevil (Cosmopolites sordidus, Germar) is a major pest in East African Highland Banana. The influence of crop nutritional status on weevil damage is poorly understood. Nutrient availability affects the nutritional quality of plants for weevils and may affect weevil damage. Here, we evaluate the effect of insecticides alone and in combination with fertilisers (N, P, K and Si) on weevil damage using data from two experiments in central and southwest Uganda. In the first experiment, we varied chlorpyrifos and application rates of N, P and K. In the second experiment, we varied the application rates of K and Si. Treatment effects were analysed using generalised linear mixed models with a negative binomial distribution. In the first experiment, chlorpyrifos reduced and N increased weevil damage, while P and K had no significant effect. In the K or Si application rates reduced weevil damage compared with the control. We conclude that the combined application of chlorpyrifos with K and Si fertilisers can contribute to weevil damage control on sites with low nutrient availability and should form part of integrated weevil management in bananas. Future studies should assess how much reduction in insecticide use is possible in EAHB with judicious input rates. |
| format | Journal Article |
| id | CGSpace130622 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| record_format | dspace |
| spelling | CGSpace1306222025-11-11T10:12:42Z Evaluating combined effects of pesticide and crop nutrition (with N, P, K and Si) on weevil damage in east African highland bananas Bukomeko, H. Taulya, G. Schut, A.G.T. Ven, G.W. van de Kubiriba, Jerome Giller, Kenneth E. bananas food security plant diseases pests of plants uganda Banana weevil (Cosmopolites sordidus, Germar) is a major pest in East African Highland Banana. The influence of crop nutritional status on weevil damage is poorly understood. Nutrient availability affects the nutritional quality of plants for weevils and may affect weevil damage. Here, we evaluate the effect of insecticides alone and in combination with fertilisers (N, P, K and Si) on weevil damage using data from two experiments in central and southwest Uganda. In the first experiment, we varied chlorpyrifos and application rates of N, P and K. In the second experiment, we varied the application rates of K and Si. Treatment effects were analysed using generalised linear mixed models with a negative binomial distribution. In the first experiment, chlorpyrifos reduced and N increased weevil damage, while P and K had no significant effect. In the K or Si application rates reduced weevil damage compared with the control. We conclude that the combined application of chlorpyrifos with K and Si fertilisers can contribute to weevil damage control on sites with low nutrient availability and should form part of integrated weevil management in bananas. Future studies should assess how much reduction in insecticide use is possible in EAHB with judicious input rates. 2023 2023-06-05T11:50:33Z 2023-06-05T11:50:33Z Journal Article https://hdl.handle.net/10568/130622 en Open Access application/pdf Bukomeko, H., Taulya, G., Schut, A.G.T., van de Ven, G.W., Kubiriba, J. & Giller, K. (2023). Evaluating combined effects of pesticide and crop nutrition (with N, P, K and Si) on weevil damage in east African highland bananas. PLoS ONE, 18(3): e0282493, 1-12. |
| spellingShingle | bananas food security plant diseases pests of plants uganda Bukomeko, H. Taulya, G. Schut, A.G.T. Ven, G.W. van de Kubiriba, Jerome Giller, Kenneth E. Evaluating combined effects of pesticide and crop nutrition (with N, P, K and Si) on weevil damage in east African highland bananas |
| title | Evaluating combined effects of pesticide and crop nutrition (with N, P, K and Si) on weevil damage in east African highland bananas |
| title_full | Evaluating combined effects of pesticide and crop nutrition (with N, P, K and Si) on weevil damage in east African highland bananas |
| title_fullStr | Evaluating combined effects of pesticide and crop nutrition (with N, P, K and Si) on weevil damage in east African highland bananas |
| title_full_unstemmed | Evaluating combined effects of pesticide and crop nutrition (with N, P, K and Si) on weevil damage in east African highland bananas |
| title_short | Evaluating combined effects of pesticide and crop nutrition (with N, P, K and Si) on weevil damage in east African highland bananas |
| title_sort | evaluating combined effects of pesticide and crop nutrition with n p k and si on weevil damage in east african highland bananas |
| topic | bananas food security plant diseases pests of plants uganda |
| url | https://hdl.handle.net/10568/130622 |
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