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

Doryctobracon areolatus Szépligeti (Hymenoptera: Braconidae) is an endoparasitoid wasp native to the Neotropical region that parasitizes the early stages of fruit flies of the genus Anastrepha, with records of high natural parasitism. In this study, we evaluated eggs and the three larval instars of...

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Bibliographic Details
Published in:Phytoparasitica 2022-02, Vol.50 (1), p.117-125
Main Authors: López-Arriaga, Florida, Pérez-Cruz, César, López, Patricia, Flores, Salvador, Cancino, Jorge, Salvador-Figueroa, Miguel, Montoya, Pablo
Format: Article
Language:English
Subjects:
Acceptance tests
Agriculture
Anastrepha ludens
Anastrepha obliqua
Biomedical and Life Sciences
Braconidae
Diptera
Ecology
Eggs
Fruit flies
Fruits
Host preferences
Host selection
Hymenoptera
Instars
Laboratories
Laboratory methods
Larvae
Life Sciences
Original Article
Oviposition
Parasitism
Plant Pathology
Plant Sciences
Rearing
Tephritidae
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Summary:Doryctobracon areolatus Szépligeti (Hymenoptera: Braconidae) is an endoparasitoid wasp native to the Neotropical region that parasitizes the early stages of fruit flies of the genus Anastrepha, with records of high natural parasitism. In this study, we evaluated eggs and the three larval instars of Anastrepha ludens Loew (Diptera: Tephritidae), the Mexican fruit fly, and Anastrepha obliqua Macquart (Diptera: Tephritidae), the West Indian fruit fly, to define the most suitable host and stage for the laboratory rearing of this endoparasitoid. Host preference and acceptance was evaluated by simultaneous exposure of eggs and first, second and third stage larvae of both fruit fly species to sexually mature female wasps, using guava fruits as oviposition units. Doryctobracon areolatus developed in all of the exposed hosts, but a higher percentage of total parasitism and a greater proportion of emerged D. areolatus females were obtained from the second instar larvae of A. ludens. In A. obliqua , a greater mortality of immature stages was recorded, as well as a significantly higher percentage of superparasitized larvae. Survival of the emerged D. a reolatus adults did not differ between host species. The data obtained identified second instar larvae of A. ludens as the most suitable host and a basis on which to develop a D. areolatus laboratory rearing process.
ISSN:0334-2123
1876-7184
DOI:10.1007/s12600-021-00920-0