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Irradiation of early immature Anastrepha ludens stages for the rearing of Doryctobracon areolatus (Hymenoptera: Braconidae), a fruit fly parasitoid
Bulletin of Entomological Research ( IF 1.9 ) Pub Date : 2020-05-18 , DOI: 10.1017/s0007485320000176 Florida López-Arriaga 1 , Victor Hugo Gordillo 2 , Jorge Cancino 1 , Pablo Montoya 1
Doryctobracon areolatus is a native parasitoid of the Neotropical region that presents the highest percentages of natural parasitism of fruit flies of the genus Anastrepha . In the Moscafrut Program SADER-SENASICA, located in Metapa de Domínguez, Chiapas, Mexico, a laboratory colony of this species is maintained on Anastrepha ludens, the Mexican fruit fly, with the aim to scale the production of the parasitoid up to massive levels. In order to eliminate unwanted emergence of adult flies during the rearing process, this study evaluated the effect of irradiation (at doses of 20, 30, 40, and 50 Gy) applied to eggs, and first and second instar larvae of A. ludens ; all irradiated stages were subsequently exposed as second instar larvae to adult females of D. areolatus . Irradiation did not affect the eclosion of A. ludens eggs but, at doses of 40 and 50 Gy, it did cause delayed larval development and pupation, as well as lower larval weight. Adult fly emergence was suppressed at all doses, except in eggs irradiated at 20 Gy. Doses of 20 and 30 Gy applied to the eggs and larvae did not affect the emergence, survival, fecundity or flight ability of the emerged parasitoids, but the second instar larvae were easily handled during the rearing process. Our results suggest that D. areolatus can be successfully produced in second instar larvae of A. ludens irradiated at 30 Gy.
中文翻译:
辐照早期未成熟的 Anastrepha ludens 阶段用于饲养 Doryctobracon areolatus (Hymenoptera: Braconidae),一种果蝇寄生蜂
乳龙鱼 是新热带地区的一种原生寄生蜂,该属果蝇的天然寄生率最高按实蝇 . 在位于墨西哥恰帕斯州 Metapa de Domínguez 的 Moscafrut 计划 SADER-SENASICA 中,该物种的实验室群落维持在按实蝇, 墨西哥果蝇,旨在将寄生蜂的生产规模扩大到大规模。为了消除饲养过程中成虫的意外出现,本研究评估了照射(剂量分别为 20、30、40 和 50 Gy)对卵、一龄和二龄幼虫的影响。A.卢登斯 ; 所有辐照阶段随后作为二龄幼虫暴露于成年雌性D. 乳晕 . 辐照不影响羽化A.卢登斯 但是,在 40 和 50 Gy 的剂量下,它确实会导致幼虫发育和化蛹延迟,以及幼虫体重降低。除了在 20 Gy 辐照下的卵外,所有剂量的成蝇出现都受到抑制。对卵和幼虫施以20和30 Gy的剂量不影响已出苗的寄生蜂的出苗、成活、繁殖力或飞行能力,但在饲养过程中二龄幼虫易于处理。我们的结果表明D. 乳晕 可在二龄幼虫中成功生产A.卢登斯 辐照 30 Gy。
更新日期:2020-05-18
Bulletin of Entomological Research ( IF 1.9 ) Pub Date : 2020-05-18 , DOI: 10.1017/s0007485320000176 Florida López-Arriaga 1 , Victor Hugo Gordillo 2 , Jorge Cancino 1 , Pablo Montoya 1
Affiliation
中文翻译:
辐照早期未成熟的 Anastrepha ludens 阶段用于饲养 Doryctobracon areolatus (Hymenoptera: Braconidae),一种果蝇寄生蜂