Host stage selection and sex allocation by Anagyrus mangicola (Hymenoptera: encyrtidae), a parasitoid of the mango mealybug, Rastrococcus invadens (Homoptera: pseudococcidae)
Host stage selection and sex allocation behaviors by Anagyrus mangicola Noyes were studied in choice and no-choice experiments in the laboratory. All host instars of the mango mealybug (MM), Rastrococcus invadens Williams (Hem., Pseudococcidae), were parasitized. First instars were less often encoun...
| Autores principales: | , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
1995
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/80717 |
| _version_ | 1855527644681994240 |
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| author | Bokonon-Ganta, A.H. Neuenschwander, Peter Vanalphen, J.J.M. Vos, M. |
| author_browse | Bokonon-Ganta, A.H. Neuenschwander, Peter Vanalphen, J.J.M. Vos, M. |
| author_facet | Bokonon-Ganta, A.H. Neuenschwander, Peter Vanalphen, J.J.M. Vos, M. |
| author_sort | Bokonon-Ganta, A.H. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Host stage selection and sex allocation behaviors by Anagyrus mangicola Noyes were studied in choice and no-choice experiments in the laboratory. All host instars of the mango mealybug (MM), Rastrococcus invadens Williams (Hem., Pseudococcidae), were parasitized. First instars were less often encountered, seldom stung, and parasitized. They were, however, preferred for host feeding. Handling time per host decreased with increasing host size. Female wasps recognized previously parasitized hosts and, in cases where they attacked them, did not oviposit into them. The sex ratio of emerging parasitoids, expressed as proportion of males, was lowest when MM were parasitized as mature adult females and increased with decreasing host size, from young adult females to first instars. Female wasps emerging from any size of host were always larger than the corresponding males. Male size increased with that of the host, while female size was independent of host instar at oviposition. The possible impact of A. mangicola as a complementary natural enemy to Gyranusoidea tebygi Noyes (Hym., Encyrtidae), for the biological control of MM, is discussed. |
| format | Journal Article |
| id | CGSpace80717 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1995 |
| publishDateRange | 1995 |
| publishDateSort | 1995 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace807172024-01-17T12:58:34Z Host stage selection and sex allocation by Anagyrus mangicola (Hymenoptera: encyrtidae), a parasitoid of the mango mealybug, Rastrococcus invadens (Homoptera: pseudococcidae) Bokonon-Ganta, A.H. Neuenschwander, Peter Vanalphen, J.J.M. Vos, M. anagyrus rastrococcus invadens gyranusoidea tebygi parasitoid behavior biological control sexual allocation host selection Host stage selection and sex allocation behaviors by Anagyrus mangicola Noyes were studied in choice and no-choice experiments in the laboratory. All host instars of the mango mealybug (MM), Rastrococcus invadens Williams (Hem., Pseudococcidae), were parasitized. First instars were less often encountered, seldom stung, and parasitized. They were, however, preferred for host feeding. Handling time per host decreased with increasing host size. Female wasps recognized previously parasitized hosts and, in cases where they attacked them, did not oviposit into them. The sex ratio of emerging parasitoids, expressed as proportion of males, was lowest when MM were parasitized as mature adult females and increased with decreasing host size, from young adult females to first instars. Female wasps emerging from any size of host were always larger than the corresponding males. Male size increased with that of the host, while female size was independent of host instar at oviposition. The possible impact of A. mangicola as a complementary natural enemy to Gyranusoidea tebygi Noyes (Hym., Encyrtidae), for the biological control of MM, is discussed. 1995-12 2017-04-13T15:03:38Z 2017-04-13T15:03:38Z Journal Article https://hdl.handle.net/10568/80717 en Limited Access Elsevier Bokonon-Ganta, A.H., Neuenschwander, P., Vanalphen, J.J.M. & Vos, M. (1995). Host stage selection and sex allocation by Anagyrus mangicola (Hymenoptera: Encyrtidae), a parasitoid of the mango mealybug, Rastrococcus invadens (Homoptera: Pseudococcidae). Biological Control, 5(4), 479-486. |
| spellingShingle | anagyrus rastrococcus invadens gyranusoidea tebygi parasitoid behavior biological control sexual allocation host selection Bokonon-Ganta, A.H. Neuenschwander, Peter Vanalphen, J.J.M. Vos, M. Host stage selection and sex allocation by Anagyrus mangicola (Hymenoptera: encyrtidae), a parasitoid of the mango mealybug, Rastrococcus invadens (Homoptera: pseudococcidae) |
| title | Host stage selection and sex allocation by Anagyrus mangicola (Hymenoptera: encyrtidae), a parasitoid of the mango mealybug, Rastrococcus invadens (Homoptera: pseudococcidae) |
| title_full | Host stage selection and sex allocation by Anagyrus mangicola (Hymenoptera: encyrtidae), a parasitoid of the mango mealybug, Rastrococcus invadens (Homoptera: pseudococcidae) |
| title_fullStr | Host stage selection and sex allocation by Anagyrus mangicola (Hymenoptera: encyrtidae), a parasitoid of the mango mealybug, Rastrococcus invadens (Homoptera: pseudococcidae) |
| title_full_unstemmed | Host stage selection and sex allocation by Anagyrus mangicola (Hymenoptera: encyrtidae), a parasitoid of the mango mealybug, Rastrococcus invadens (Homoptera: pseudococcidae) |
| title_short | Host stage selection and sex allocation by Anagyrus mangicola (Hymenoptera: encyrtidae), a parasitoid of the mango mealybug, Rastrococcus invadens (Homoptera: pseudococcidae) |
| title_sort | host stage selection and sex allocation by anagyrus mangicola hymenoptera encyrtidae a parasitoid of the mango mealybug rastrococcus invadens homoptera pseudococcidae |
| topic | anagyrus rastrococcus invadens gyranusoidea tebygi parasitoid behavior biological control sexual allocation host selection |
| url | https://hdl.handle.net/10568/80717 |
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