Economics of biological control of cassava mealybug in Africa
Pest populations of the cassava mealybug Phenacoccus manihoti Mat.-Ferr. (Homoptera: Pseudococcidae) were reduced successfully by the biological control agent Apoanagyrus (Epidinocarsis) lopezi De Santis (Hymenoptera: Encyrtidae) throughout most of sub-Saharan Africa. The economics of the project we...
| Autores principales: | , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Wiley
2000
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/92651 |
| _version_ | 1855527878300532736 |
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| author | Zeddies, J. Schaab, R.P. Neuenschwander, Peter Herren, H.R. |
| author_browse | Herren, H.R. Neuenschwander, Peter Schaab, R.P. Zeddies, J. |
| author_facet | Zeddies, J. Schaab, R.P. Neuenschwander, Peter Herren, H.R. |
| author_sort | Zeddies, J. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Pest populations of the cassava mealybug Phenacoccus manihoti Mat.-Ferr. (Homoptera: Pseudococcidae) were reduced successfully by the biological control agent Apoanagyrus (Epidinocarsis) lopezi De Santis (Hymenoptera: Encyrtidae) throughout most of sub-Saharan Africa. The economics of the project were evaluated based on data from field trials, socio-economic surveys, published results, and financial information provided by the International Institute of Tropical Agriculture (IITA) and the national programmes. Costs and benefits for the biological control of P. manihoti were calculated over 40 years (1974–2013) for 27 African countries, for four different scenarios, taking into account that impact by A. lopezi and speed of the impact differ between ecological zones. A reasonable calculation considering compounded interest resulted in a benefit cost ratio of about 200 when cassava was costed at world market prices, and of about 370–740 when inter-African prices were considered. |
| format | Journal Article |
| id | CGSpace92651 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2000 |
| publishDateRange | 2000 |
| publishDateSort | 2000 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace926512024-05-15T05:11:45Z Economics of biological control of cassava mealybug in Africa Zeddies, J. Schaab, R.P. Neuenschwander, Peter Herren, H.R. economics of biological control phenacoccus manihoti apoanagyrus lopezi cassava Pest populations of the cassava mealybug Phenacoccus manihoti Mat.-Ferr. (Homoptera: Pseudococcidae) were reduced successfully by the biological control agent Apoanagyrus (Epidinocarsis) lopezi De Santis (Hymenoptera: Encyrtidae) throughout most of sub-Saharan Africa. The economics of the project were evaluated based on data from field trials, socio-economic surveys, published results, and financial information provided by the International Institute of Tropical Agriculture (IITA) and the national programmes. Costs and benefits for the biological control of P. manihoti were calculated over 40 years (1974–2013) for 27 African countries, for four different scenarios, taking into account that impact by A. lopezi and speed of the impact differ between ecological zones. A reasonable calculation considering compounded interest resulted in a benefit cost ratio of about 200 when cassava was costed at world market prices, and of about 370–740 when inter-African prices were considered. 2000-01-01 2018-05-17T09:02:59Z 2018-05-17T09:02:59Z Journal Article https://hdl.handle.net/10568/92651 en Limited Access Wiley Zeddies, J., Schaab, R.P., Neuenschwander, P. & Herren, H.R. (2001). Economics of biological control of cassava mealybug in Africa. Agricultural Economics, 24(2), 209-219. |
| spellingShingle | economics of biological control phenacoccus manihoti apoanagyrus lopezi cassava Zeddies, J. Schaab, R.P. Neuenschwander, Peter Herren, H.R. Economics of biological control of cassava mealybug in Africa |
| title | Economics of biological control of cassava mealybug in Africa |
| title_full | Economics of biological control of cassava mealybug in Africa |
| title_fullStr | Economics of biological control of cassava mealybug in Africa |
| title_full_unstemmed | Economics of biological control of cassava mealybug in Africa |
| title_short | Economics of biological control of cassava mealybug in Africa |
| title_sort | economics of biological control of cassava mealybug in africa |
| topic | economics of biological control phenacoccus manihoti apoanagyrus lopezi cassava |
| url | https://hdl.handle.net/10568/92651 |
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