Host suitability of different instars of the whitefly Bemisia tabaci 'biotype Q' for Eretmocerus mundus
Eretmocerus mundus Mercet is a parasitoid of Bemisia tabaci (Genn.) indigenous to the Mediterranean and is used commercially for augmentative biological control in Spain and elsewhere. A better understanding of the suitability of different host instars would help optimize production and field app...
| Autores principales: | , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
2017
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| Acceso en línea: | http://hdl.handle.net/20.500.11939/4647 https://link.springer.com/article/10.1023/B%3ABICO.0000017365.37010.e0 |
| _version_ | 1855491791006990336 |
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| author | Urbaneja, Alberto Stansly, Philip A. |
| author_browse | Stansly, Philip A. Urbaneja, Alberto |
| author_facet | Urbaneja, Alberto Stansly, Philip A. |
| author_sort | Urbaneja, Alberto |
| collection | ReDivia |
| description | Eretmocerus mundus Mercet is a parasitoid of Bemisia tabaci (Genn.) indigenous
to the Mediterranean and is used commercially for augmentative biological control
in Spain and elsewhere. A better understanding of the suitability of different host instars
would help optimize production and field application. Incidence of parasitism, development
time, survivorship and sex ratio were evaluated when different nymphal instars of the sweetpotato
whitefly Bemisia tabaci biotype ‘Q’ were offered for parasitization. Experiments were
conducted on sweet pepper at 25 ◦C, 75% RH and 16:8 (L:D) photoperiod. E. mundus
oviposited in all nymphal instars of B. tabaci except the mature 4th instar or pharate adult
(previously designated, ‘pupa’). Incidence of parasitism was greatest (33.8 ± 5.1 parasitized
nymphs) and development time shortest (14.1 ± 0.1 d) when oviposition occurred under 2nd
and 3rd instar nymphs compared to 1st or 4th instars. Survivorship (85%) and offspring sex
ratio (39.8% female) did not differ statistically for parasitoids developing in whiteflies that
were parasitized as different instars. Although 2nd and 3rd instars were clearly the most
favorable host stage for E. mundus, its capacity to parasitize and develop on a wide range
of host stages is a favorable characteristic for both rearing and field application. |
| format | Artículo |
| id | ReDivia4647 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | ReDivia46472025-04-25T14:44:05Z Host suitability of different instars of the whitefly Bemisia tabaci 'biotype Q' for Eretmocerus mundus Urbaneja, Alberto Stansly, Philip A. Bemisia tabaci Developmental rate Eretmocerus mundus Host instar Host suitability Parasitism Sex ratio Survivorship Eretmocerus mundus Mercet is a parasitoid of Bemisia tabaci (Genn.) indigenous to the Mediterranean and is used commercially for augmentative biological control in Spain and elsewhere. A better understanding of the suitability of different host instars would help optimize production and field application. Incidence of parasitism, development time, survivorship and sex ratio were evaluated when different nymphal instars of the sweetpotato whitefly Bemisia tabaci biotype ‘Q’ were offered for parasitization. Experiments were conducted on sweet pepper at 25 ◦C, 75% RH and 16:8 (L:D) photoperiod. E. mundus oviposited in all nymphal instars of B. tabaci except the mature 4th instar or pharate adult (previously designated, ‘pupa’). Incidence of parasitism was greatest (33.8 ± 5.1 parasitized nymphs) and development time shortest (14.1 ± 0.1 d) when oviposition occurred under 2nd and 3rd instar nymphs compared to 1st or 4th instars. Survivorship (85%) and offspring sex ratio (39.8% female) did not differ statistically for parasitoids developing in whiteflies that were parasitized as different instars. Although 2nd and 3rd instars were clearly the most favorable host stage for E. mundus, its capacity to parasitize and develop on a wide range of host stages is a favorable characteristic for both rearing and field application. 2017-06-01T10:10:39Z 2017-06-01T10:10:39Z 2004 article Urbaneja, A., Stansly, P. A. (2004). Host suitability of different instars of the whitefly Bemisia tabaci 'biotype Q' for Eretmocerus mundus. Biocontrol, 49(2), 153-161. http://hdl.handle.net/20.500.11939/4647 10.1023/B:BICO.0000017365.37010.e0 https://link.springer.com/article/10.1023/B%3ABICO.0000017365.37010.e0 en openAccess Impreso |
| spellingShingle | Bemisia tabaci Developmental rate Eretmocerus mundus Host instar Host suitability Parasitism Sex ratio Survivorship Urbaneja, Alberto Stansly, Philip A. Host suitability of different instars of the whitefly Bemisia tabaci 'biotype Q' for Eretmocerus mundus |
| title | Host suitability of different instars of the whitefly Bemisia tabaci 'biotype Q' for Eretmocerus mundus |
| title_full | Host suitability of different instars of the whitefly Bemisia tabaci 'biotype Q' for Eretmocerus mundus |
| title_fullStr | Host suitability of different instars of the whitefly Bemisia tabaci 'biotype Q' for Eretmocerus mundus |
| title_full_unstemmed | Host suitability of different instars of the whitefly Bemisia tabaci 'biotype Q' for Eretmocerus mundus |
| title_short | Host suitability of different instars of the whitefly Bemisia tabaci 'biotype Q' for Eretmocerus mundus |
| title_sort | host suitability of different instars of the whitefly bemisia tabaci biotype q for eretmocerus mundus |
| topic | Bemisia tabaci Developmental rate Eretmocerus mundus Host instar Host suitability Parasitism Sex ratio Survivorship |
| url | http://hdl.handle.net/20.500.11939/4647 https://link.springer.com/article/10.1023/B%3ABICO.0000017365.37010.e0 |
| work_keys_str_mv | AT urbanejaalberto hostsuitabilityofdifferentinstarsofthewhiteflybemisiatabacibiotypeqforeretmocerusmundus AT stanslyphilipa hostsuitabilityofdifferentinstarsofthewhiteflybemisiatabacibiotypeqforeretmocerusmundus |