Title:	Spatial and temporal dispersion of Doryctobracon areolatus (Szépligeti) (Hymenoptera: Braconidae) in orchards infested with Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae).
Authors:	PIOVESAN, B. GONÇALVES, R. da S. NÖRNBERG, S. D. LLANO, J. H. G. CONTRERAS-MIRANDA, J. BERNARDI, D. NAVA, D. E.
Affiliation:	BRUNA PIOVESAN, UNIVERSIDADE FEDERAL DE PELOTAS; RAFAEL DA SILVA GONÇALVES, PARTAMON; SANDRO DANIEL NÖRNBERG, PARTAMON; JESUS HERNANDO GOMEZ LLANO, UNIVERSIDADE FEDERAL DE PELOTAS; JAVIER CONTRERAS-MIRANDA, UNIVERSIDADE FEDERAL DE PELOTAS; DANIEL BERNARDI, UNIVERSIDADE FEDERAL DE PELOTAS; DORI EDSON NAVA, CPACT.
Date Issued:	2023
Citation:	Environmental Entomology, v. 52, n. 4, p. 565-573, Aug. 2023.
Description:	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.
Thesagro:	Mosca das Frutas Pêssego
NAL Thesaurus:	Doryctobracon areolatus
DOI:	https://doi.org/10.1093/ee/nvad059
Notes:	Accepted on 1 June 2023.
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CPACT)