Interaction between the aphid parasitoid Lysiphlebus testaceipes (Hymenoptera: Aphidiidae) and its hyperparasitoid Syrphophagus africanus (Hymenoptera: Encyrtidae)
The interactions between the cowpea aphid Aphis craccivora Koch, its parasitoid Lysiphlebus testaceipes Cresson and hyperparasitoid Syrphophagus africanus Gahan were assessed in the laboratory. Host age preference for hyperparasitism was evaluated using parasitized aphids of different ages (i.e. 1,...
| Autores principales: | , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2012
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/77442 |
| _version_ | 1855521896369487872 |
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| author | Ganyo, K.K. Tounou, A.K. Agboton, C. Dannou, E.A. Pittendrigh, Barry Robert Tamo, Manuele |
| author_browse | Agboton, C. Dannou, E.A. Ganyo, K.K. Pittendrigh, Barry Robert Tamo, Manuele Tounou, A.K. |
| author_facet | Ganyo, K.K. Tounou, A.K. Agboton, C. Dannou, E.A. Pittendrigh, Barry Robert Tamo, Manuele |
| author_sort | Ganyo, K.K. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The interactions between the cowpea aphid Aphis craccivora Koch, its parasitoid Lysiphlebus testaceipes Cresson and hyperparasitoid Syrphophagus africanus Gahan were assessed in the laboratory. Host age preference for hyperparasitism was evaluated using parasitized aphids of different ages (i.e. 1, 2, 3, 4, 5 and 6 days old and mixed ages). We studied the influence of the hyperparasitoid on the parasitism efficiency of L. testaceipes, the effect of host age on some biological parameters of S. africanus, and its hyperparasitism based on aggregated or isolated mummies. The presence of S. africanus significantly affected aphid parasitism by L. testaceipes (21.2 ^ 3.6 vs 36.6 ^ 4.5%). Except for 1-day-old hosts, S. africanus successfully parasitized hosts of all tested ages, with preference for newly formed mummies (39.16 ^ 3.31% parasitism in 5-day-old hosts). The development time of immature stages of the S. africanus progeny was significantly affected by host age. The sex ratio of the hyperparasitoid progeny was largely female biased and did not vary with host age. Syrphophagus africanus females from live parasitized aphids produced more offspring (36.55 ^ 6.28 vs 25.00 ^ 7.16) and lived longer (21.09 ^ 1.57 vs 10.88 ^ 2.31 days) than those from mummy hosts. Hyperparasitism rates were higher on aggregated mummies than on dispersed ones (36.00 ^ 2.86 vs 20.66 ^ 4.00%). |
| format | Journal Article |
| id | CGSpace77442 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2012 |
| publishDateRange | 2012 |
| publishDateSort | 2012 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace774422024-08-29T11:41:29Z Interaction between the aphid parasitoid Lysiphlebus testaceipes (Hymenoptera: Aphidiidae) and its hyperparasitoid Syrphophagus africanus (Hymenoptera: Encyrtidae) Ganyo, K.K. Tounou, A.K. Agboton, C. Dannou, E.A. Pittendrigh, Barry Robert Tamo, Manuele lysiphlebus hyperparasitism aphid aphis cowpeas The interactions between the cowpea aphid Aphis craccivora Koch, its parasitoid Lysiphlebus testaceipes Cresson and hyperparasitoid Syrphophagus africanus Gahan were assessed in the laboratory. Host age preference for hyperparasitism was evaluated using parasitized aphids of different ages (i.e. 1, 2, 3, 4, 5 and 6 days old and mixed ages). We studied the influence of the hyperparasitoid on the parasitism efficiency of L. testaceipes, the effect of host age on some biological parameters of S. africanus, and its hyperparasitism based on aggregated or isolated mummies. The presence of S. africanus significantly affected aphid parasitism by L. testaceipes (21.2 ^ 3.6 vs 36.6 ^ 4.5%). Except for 1-day-old hosts, S. africanus successfully parasitized hosts of all tested ages, with preference for newly formed mummies (39.16 ^ 3.31% parasitism in 5-day-old hosts). The development time of immature stages of the S. africanus progeny was significantly affected by host age. The sex ratio of the hyperparasitoid progeny was largely female biased and did not vary with host age. Syrphophagus africanus females from live parasitized aphids produced more offspring (36.55 ^ 6.28 vs 25.00 ^ 7.16) and lived longer (21.09 ^ 1.57 vs 10.88 ^ 2.31 days) than those from mummy hosts. Hyperparasitism rates were higher on aggregated mummies than on dispersed ones (36.00 ^ 2.86 vs 20.66 ^ 4.00%). 2012-03 2016-10-27T08:30:51Z 2016-10-27T08:30:51Z Journal Article https://hdl.handle.net/10568/77442 en Limited Access Springer Ganyo, K.K., Tounou, A.K., Agboton, C., Dannon, E., Pittendrigh, B.R. & Tamo, M. (2012). Interaction between the aphid parasitoid Lysiphlebus testaceipes (Hymenoptera: Aphidiidae) and its hyperparasitoid Syrphophagus africanus (Hymenoptera: Encyrtidae). International Journal of Tropical Insect Science, 32(01), 45-55. |
| spellingShingle | lysiphlebus hyperparasitism aphid aphis cowpeas Ganyo, K.K. Tounou, A.K. Agboton, C. Dannou, E.A. Pittendrigh, Barry Robert Tamo, Manuele Interaction between the aphid parasitoid Lysiphlebus testaceipes (Hymenoptera: Aphidiidae) and its hyperparasitoid Syrphophagus africanus (Hymenoptera: Encyrtidae) |
| title | Interaction between the aphid parasitoid Lysiphlebus testaceipes (Hymenoptera: Aphidiidae) and its hyperparasitoid Syrphophagus africanus (Hymenoptera: Encyrtidae) |
| title_full | Interaction between the aphid parasitoid Lysiphlebus testaceipes (Hymenoptera: Aphidiidae) and its hyperparasitoid Syrphophagus africanus (Hymenoptera: Encyrtidae) |
| title_fullStr | Interaction between the aphid parasitoid Lysiphlebus testaceipes (Hymenoptera: Aphidiidae) and its hyperparasitoid Syrphophagus africanus (Hymenoptera: Encyrtidae) |
| title_full_unstemmed | Interaction between the aphid parasitoid Lysiphlebus testaceipes (Hymenoptera: Aphidiidae) and its hyperparasitoid Syrphophagus africanus (Hymenoptera: Encyrtidae) |
| title_short | Interaction between the aphid parasitoid Lysiphlebus testaceipes (Hymenoptera: Aphidiidae) and its hyperparasitoid Syrphophagus africanus (Hymenoptera: Encyrtidae) |
| title_sort | interaction between the aphid parasitoid lysiphlebus testaceipes hymenoptera aphidiidae and its hyperparasitoid syrphophagus africanus hymenoptera encyrtidae |
| topic | lysiphlebus hyperparasitism aphid aphis cowpeas |
| url | https://hdl.handle.net/10568/77442 |
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