Data/hora: 10/06/2024 14:18:18

Biblioteca(s): | Embrapa Clima Temperado.
Data corrente: | 10/04/2023
Data da última atualização: | 10/04/2023
Autoria: | GARCEZ, A. M.; KRÜGER, A. P.; NAVA, D. E.
Afiliação: | AMANDA MONTANDON GARCEZ; ALEXANDRA PETER KRÜGER; DORI EDSON NAVA, CPACT.
Título: | Intrinsic competition between 2 pupal parasitoids of Drosophila suzukii (Diptera: Drosophilidae).
Ano de publicação: | 2023
Fonte/Imprenta: | Annals of the Entomological Society of America, 2023.
DOI: | https://doi.org/10.1093/aesa/saad010
Idioma: | Inglês
Notas: | Online first. Published: 08 April 2023.
Conteúdo: | The parasitoids Pachycrepoideus vindemmiae Rondani (Hymenoptera: Pteromalidae) and Trichopria anastrephae Costa Lima (Hymenoptera: Diapriidae) have great potential in controlling Drosophila suzukii (Matsumura); however, both, compete for the same resources. In this study, we evaluated whether the different stages of development of the primary parasitoid reduce the negative effect of intrinsic competition. For this, we first defined the duration of each immature stage of both parasitoid species and then offered D. suzukii pupae containing the first parasitoid (P. vindemmiae or T. anastrephae) at different stages of development to the second parasitoid (P. vindemmiae or T. anastrephae). We also checked the second parasitoid?s preference (P. vindemmiae or T. anastrephae) for the primary parasitoid at different stages of development (P. vindemmiae or T. anastrephae) or D. suzukii pupae nonparasitized. Our evaluations showed that T. anastrephae preferred to parasitize pupae that were not previously parasitized and that had not parasitized puparia of D. suzukii when P. vindemmiae was in later stage to the 1st instar. However, P. vindemmiae preferred to parasitize pupae previously parasitized by T. anastrephae. In an environment of intrinsic competition, the first parasitoid to parasitize has an advantage, except when the pupal stage of T. anastrephae is parasitized by P. vindemmiae. The variation in the parasitoids? oviposition time mitigates the competition effect; however, for use in biological control programs, the hyperparasitoids P. vindemmiae, does not prove to be advantageous, as they can affect the establishment of primary parasitoids such as T. anastrephae, and can act as competitors for resources.
Thesagro: | Drosófila; Parasito.
Thesaurus Nal: | Hymenoptera.
Categoria do assunto: | --
Registro original: | Embrapa Clima Temperado (CPACT)
Exemplares: | CPACT - (22605-1) - UPC - AP - DD -  -  -  - DIS