Bulletin of Insectology (2020) 73, 241-248

Arianna Mariano-Macedo, Yadira-Maibeth Vázquez-González, Ana-Mabel Martínez, Angel Rebollar-Alviter, José-Isaac Figueroa, Sinue-Isabel Morales, Elisa Viñuela and Samuel Pineda (2020)
Biological traits of a Pachycrepoideus vindemiae Mexican population on the host Drosophila suzukii
Bulletin of Insectology 73 (2), 241-248
Abstract: Pachycrepoideus vindemiae (Rondani) (Hymenoptera Pteromalidae), a pupal ectoparasitoid, is considered a potential candidate for the biological control of Drosophila suzukii (Matsumura). To get a cost-effectively mass rearing under lab conditions, in this study, several life parameters of this parasitoid were assessed using D. suzukii pupae as host. In addition, the influence of D. suzukii pupal age on parasitism and sex ratio of P. vindemiae offspring was evaluated. Females started laying eggs when they were 0.12-d-old (= 3-h-old) and the number of eggs increased significantly when they were 0.5-d-old (= 12-h-old), with a pre-oviposition period less than 4 d after adult emergence. The maximum oviposition activity and parasitoid emergence were observed when females were very young (between 3-11-d-old for fecundity and 3-d-old for parasitoid emergence). The P. vindemiae survival rate and longevity were significantly higher in females than in males. Pupae of 48-h- and 96-h-old were significantly more parasitized than those of 24-h- and 72-h-old. The sex ratio of P. vindemiae adults was not affected by host age. We discuss the importance of the different life traits of P. vindemiae studied, especially its successful development in pupae of different ages of D. suzukii, to design a biological control strategy against this pest.
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Database assignments for author(s): Elisa Viñuela

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution
rearing/culturing/mass production

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Drosophila suzukii		Mexico
Pachycrepoideus vindemmiae (parasitoid)	Drosophila suzukii		Mexico