Host selection for the rearing of Doryctobracon areolatus (Hymenoptera: Braconidae), a fruit fly parasitoid

López-Arriaga, Florida; Pérez-Cruz, César; López, Patricia; Flores, Salvador; Cancino, Jorge; Salvador-Figueroa, Miguel; Montoya, Pablo

doi:10.1007/s12600-021-00920-0

Cited by 1 publication

(1 citation statement)

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“…After locating the host inside the fruit, mediated by antennation (touching the antennae), the adult female inserts a single egg inside the body of the fly larvae that will later give rise to a new wasp (Sthul and Sivinski 2015). Several works have already elucidated aspects related to taxonomy, rearing techniques, and biology of this species (Sthul and Sivinski 2015, Gonçalves et al 2018, Paranhos et al 2019, 2021, López-Arriaga et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Spatial and temporal dispersion of Doryctobracon areolatus (Szépligeti) (Hymenoptera: Braconidae) in orchards infested with Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae)

Piovesan

Gonçalves²,

Nörnberg³

et al. 2023

Environmental Entomology

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Doryctobracon areolatus (Szépligeti) is an endoparasitoid and promising fruit fly control agent. The objective of the study was to determine the spatial (horizontal and vertical) and temporal dispersion of D. areolatus in the field. To evaluate the horizontal and temporal dispersion, two peach orchards were selected. In each orchard, 50 points were marked at different distances from the central point, from where 4,100 couples of D. areolatus were released. Four hours after release, parasitism units (PU) (3 per point) were fixed to the trees at a height of 1.5 m from the ground. The PUs were composed of ripe apples artificially infested with second instar larvae of Anastrepha fraterculus (30 larvae/fruit). For the evaluation of vertical dispersion, in an olive orchard six points were selected (trees of ≈4 m in height). Each tree was divided into three heights in relation to the ground (1.17, 2.34, and 3.51 m). Doryctobracon areolatus was able to disperse horizontally at a distance >60 m from the release point. However, the highest parasitism rates [15–45% (area 1); 15–27% (area 2)] were observed up to 25 m. Higher percentages of parasitism and of recovered offspring occur in the first days after the release of the parasitoid (2 DAR). As for vertical dispersion, D. areolatus parasitized A. fraterculus larvae up to the highest attachment height of the evaluated PUs (3.51). The results showed the potential use of D. areolatus in the management of fruit flies in the field.

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