Pseudoparasitism by Spalangia cameroni (Hymenoptera: Pteromalidae) of pupae of Ceratitis capitata (Diptera: Tephritidae): Frequency and implications
The effectiveness of natural enemies in controlling pests may be determined by many traits linked to their ability to regulate the density of their prey. In this respect, the phenomenon of pseudoparasitism, in which female parasitoids reject a host after inserting their ovipositor into it, is fairly...
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| Format: | Article |
| Language: | English |
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Institute of Entomology, Biology Centre, Czech Academy of Science
2018-08-01
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| Series: | European Journal of Entomology |
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| Online Access: | https://www.eje.cz/artkey/eje-201801-0046_Pseudoparasitism_by_Spalangia_cameroni_Hymenoptera_Pteromalidae_of_pupae_of_Ceratitis_capitata_Diptera_Tep.php |
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| author | Luis DE PEDRO Francisco BEITIA Josep D. ASÍS José TORMOS |
| author_facet | Luis DE PEDRO Francisco BEITIA Josep D. ASÍS José TORMOS |
| author_sort | Luis DE PEDRO |
| collection | DOAJ |
| description | The effectiveness of natural enemies in controlling pests may be determined by many traits linked to their ability to regulate the density of their prey. In this respect, the phenomenon of pseudoparasitism, in which female parasitoids reject a host after inserting their ovipositor into it, is fairly common among hymenopteran parasitoids. However, in spite of this its effect on hosts is rarely reported in entomological and biological control literature. For this reason, in the present study, the pseudoparasitism by the parasitoid Spalangia cameroni Perkins of the Mediterranean pest Ceratitis capitata (Wiedemann) and its effect on several biological parameters of the host were studied under laboratory conditions. The results indicate that the percentage pseudoparasitism by S. cameroni of medfly in the laboratory is high, even slightly higher than host-feeding, which is commonly used to evaluate the potential of parasitoids as biological control agents. In addition, the adults that emerge from pseudoparasitized medfly pupae have a male-biased sex ratio, low levels of survival and are frequently damaged, which results in small adults and an inability to mate successfully. In conclusion, our results indicate that pseudoparasitism is common and enhances the effectiveness of S. cameroni attacking medfly, which highlights the importance of this phenomenon when selecting parasitoids to be included in a biological control programme. |
| first_indexed | 2024-12-23T04:35:04Z |
| format | Article |
| id | doaj.art-9573ed3f16794964967281ae05361340 |
| institution | Directory Open Access Journal |
| issn | 1210-5759 1802-8829 |
| language | English |
| last_indexed | 2024-12-23T04:35:04Z |
| publishDate | 2018-08-01 |
| publisher | Institute of Entomology, Biology Centre, Czech Academy of Science |
| record_format | Article |
| series | European Journal of Entomology |
| spelling | doaj.art-9573ed3f16794964967281ae053613402022-12-21T17:59:56ZengInstitute of Entomology, Biology Centre, Czech Academy of ScienceEuropean Journal of Entomology1210-57591802-88292018-08-01115145045410.14411/eje.2018.046eje-201801-0046Pseudoparasitism by Spalangia cameroni (Hymenoptera: Pteromalidae) of pupae of Ceratitis capitata (Diptera: Tephritidae): Frequency and implicationsLuis DE PEDRO0Francisco BEITIA1Josep D. ASÍS2José TORMOS3Área de Zoología, Facultad de Biología, Universidad de Salamanca, 37007-Salamanca, Spain; e-mails: ldepedro@usal.es, tormos@usal.es, asis@usal.esInstituto Valenciano de Investigaciones Agrarias, Unidad Asociada de Entomología IVIA/CIB-CSIC, Apartado Oficial, 46113-Montcada, Valencia, Spain; e-mail: beitia_fra@gva.esÁrea de Zoología, Facultad de Biología, Universidad de Salamanca, 37007-Salamanca, Spain; e-mails: ldepedro@usal.es, tormos@usal.es, asis@usal.esÁrea de Zoología, Facultad de Biología, Universidad de Salamanca, 37007-Salamanca, Spain; e-mails: ldepedro@usal.es, tormos@usal.es, asis@usal.esThe effectiveness of natural enemies in controlling pests may be determined by many traits linked to their ability to regulate the density of their prey. In this respect, the phenomenon of pseudoparasitism, in which female parasitoids reject a host after inserting their ovipositor into it, is fairly common among hymenopteran parasitoids. However, in spite of this its effect on hosts is rarely reported in entomological and biological control literature. For this reason, in the present study, the pseudoparasitism by the parasitoid Spalangia cameroni Perkins of the Mediterranean pest Ceratitis capitata (Wiedemann) and its effect on several biological parameters of the host were studied under laboratory conditions. The results indicate that the percentage pseudoparasitism by S. cameroni of medfly in the laboratory is high, even slightly higher than host-feeding, which is commonly used to evaluate the potential of parasitoids as biological control agents. In addition, the adults that emerge from pseudoparasitized medfly pupae have a male-biased sex ratio, low levels of survival and are frequently damaged, which results in small adults and an inability to mate successfully. In conclusion, our results indicate that pseudoparasitism is common and enhances the effectiveness of S. cameroni attacking medfly, which highlights the importance of this phenomenon when selecting parasitoids to be included in a biological control programme.https://www.eje.cz/artkey/eje-201801-0046_Pseudoparasitism_by_Spalangia_cameroni_Hymenoptera_Pteromalidae_of_pupae_of_Ceratitis_capitata_Diptera_Tep.phphymenopterapteromalidaespalangia cameronidipteratephritidaeceratitis capitatamediterranean fruit flyparasitoidpseudoparasitismoverstingingbiological control |
| spellingShingle | Luis DE PEDRO Francisco BEITIA Josep D. ASÍS José TORMOS Pseudoparasitism by Spalangia cameroni (Hymenoptera: Pteromalidae) of pupae of Ceratitis capitata (Diptera: Tephritidae): Frequency and implications European Journal of Entomology hymenoptera pteromalidae spalangia cameroni diptera tephritidae ceratitis capitata mediterranean fruit fly parasitoid pseudoparasitism overstinging biological control |
| title | Pseudoparasitism by Spalangia cameroni (Hymenoptera: Pteromalidae) of pupae of Ceratitis capitata (Diptera: Tephritidae): Frequency and implications |
| title_full | Pseudoparasitism by Spalangia cameroni (Hymenoptera: Pteromalidae) of pupae of Ceratitis capitata (Diptera: Tephritidae): Frequency and implications |
| title_fullStr | Pseudoparasitism by Spalangia cameroni (Hymenoptera: Pteromalidae) of pupae of Ceratitis capitata (Diptera: Tephritidae): Frequency and implications |
| title_full_unstemmed | Pseudoparasitism by Spalangia cameroni (Hymenoptera: Pteromalidae) of pupae of Ceratitis capitata (Diptera: Tephritidae): Frequency and implications |
| title_short | Pseudoparasitism by Spalangia cameroni (Hymenoptera: Pteromalidae) of pupae of Ceratitis capitata (Diptera: Tephritidae): Frequency and implications |
| title_sort | pseudoparasitism by spalangia cameroni hymenoptera pteromalidae of pupae of ceratitis capitata diptera tephritidae frequency and implications |
| topic | hymenoptera pteromalidae spalangia cameroni diptera tephritidae ceratitis capitata mediterranean fruit fly parasitoid pseudoparasitism overstinging biological control |
| url | https://www.eje.cz/artkey/eje-201801-0046_Pseudoparasitism_by_Spalangia_cameroni_Hymenoptera_Pteromalidae_of_pupae_of_Ceratitis_capitata_Diptera_Tep.php |
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