The Cassava Mealybug, Phenacoccus sp. in the Republic of Zaire
The occurrence of the cassava mealybug Phenacoccus sp. in Zaire is reported. Data on its biology, particularly oviposition, female fecundity and nymphal development are presented. Most of the insects settle on the leaf midrib and secondary veins and the growing points of cassava. The first instar ny...
| Autores principales: | , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
1979
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/175391 |
| _version_ | 1855530814612176896 |
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| author | Nwanze, K.F. Leuchner, K. Ezumah, H.C. |
| author_browse | Ezumah, H.C. Leuchner, K. Nwanze, K.F. |
| author_facet | Nwanze, K.F. Leuchner, K. Ezumah, H.C. |
| author_sort | Nwanze, K.F. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The occurrence of the cassava mealybug Phenacoccus sp. in Zaire is reported. Data on its biology, particularly oviposition, female fecundity and nymphal development are presented. Most of the insects settle on the leaf midrib and secondary veins and the growing points of cassava. The first instar nymph (crawler) is vary important in the spread and survival of the species, the latter being within dormant leaf buds during the wet season. Dispersal is by movement of infested planting material (passive) and airborne populations of crawlers (active). Treatment of cuttings with an appropriate insecticide before planting, manipulation of planting time and soil moisture conservation may aid in reducing damage to the crop. The occurrence of Spalgis lemolea Druce, a predator of the pest is also reported. |
| format | Journal Article |
| id | CGSpace175391 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1979 |
| publishDateRange | 1979 |
| publishDateSort | 1979 |
| record_format | dspace |
| spelling | CGSpace1753912025-12-08T10:06:44Z The Cassava Mealybug, Phenacoccus sp. in the Republic of Zaire Nwanze, K.F. Leuchner, K. Ezumah, H.C. cassava crops root crops manihot esculenta phenacoccus manihoti The occurrence of the cassava mealybug Phenacoccus sp. in Zaire is reported. Data on its biology, particularly oviposition, female fecundity and nymphal development are presented. Most of the insects settle on the leaf midrib and secondary veins and the growing points of cassava. The first instar nymph (crawler) is vary important in the spread and survival of the species, the latter being within dormant leaf buds during the wet season. Dispersal is by movement of infested planting material (passive) and airborne populations of crawlers (active). Treatment of cuttings with an appropriate insecticide before planting, manipulation of planting time and soil moisture conservation may aid in reducing damage to the crop. The occurrence of Spalgis lemolea Druce, a predator of the pest is also reported. 1979-01 2025-06-30T12:26:23Z 2025-06-30T12:26:23Z Journal Article https://hdl.handle.net/10568/175391 en Limited Access application/pdf Nwanze, K. F., Leuschner, K., & Ezumah, H. C. (1979). The cassava mealybug, Phenacoccus sp. in the Republic of Zaire. Pans, 25(2): 125-130. |
| spellingShingle | cassava crops root crops manihot esculenta phenacoccus manihoti Nwanze, K.F. Leuchner, K. Ezumah, H.C. The Cassava Mealybug, Phenacoccus sp. in the Republic of Zaire |
| title | The Cassava Mealybug, Phenacoccus sp. in the Republic of Zaire |
| title_full | The Cassava Mealybug, Phenacoccus sp. in the Republic of Zaire |
| title_fullStr | The Cassava Mealybug, Phenacoccus sp. in the Republic of Zaire |
| title_full_unstemmed | The Cassava Mealybug, Phenacoccus sp. in the Republic of Zaire |
| title_short | The Cassava Mealybug, Phenacoccus sp. in the Republic of Zaire |
| title_sort | cassava mealybug phenacoccus sp in the republic of zaire |
| topic | cassava crops root crops manihot esculenta phenacoccus manihoti |
| url | https://hdl.handle.net/10568/175391 |
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