Pseudoparasitism by Spalangia cameroni (Hymenoptera: Pteromalidae) of pupae of Ceratitis capitata (Diptera: Tephritidae): Frequency and implications

Title:

Pseudoparasitism by Spalangia cameroni (Hymenoptera: Pteromalidae) of pupae of Ceratitis capitata (Diptera: Tephritidae): Frequency and implications

Creator:

De Pedro, Luis, Beitia, Francisco, Asís, Josep D, and Tormos, José

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:264d68ea-eec8-4d9f-88ca-7ed75bc52feb
uuid:264d68ea-eec8-4d9f-88ca-7ed75bc52feb
issn:1210-5759
doi:10.14411/eje.2018.046

Subject:

blanokřídlí, dvoukřídlí, vrtulovití, Hymenoptera, Diptera, Tephritidae, Pteromalidae, Spalangia cameroni, Ceratitis capitata, Mediterranean fruit fly, parasitoid, pseudoparasitism, overstinging, biological control, 2, and 59

Type:

model:article and TEXT

Format:

print, počítač, and online zdroj

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., Luis De Pedro, Francisco Beitia, Josep D. Asís, José Tormos., and Obsahuje bibliografii

Language:

English

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Source:

European Journal of Entomology | 2018 Volume:115 | Number:1

Harvested from:

CDK

Metadata only:

false