Muñoz Labiano, Delia

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https://academica-e.unavarra.es/handle/2454/49635

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Muñoz Labiano

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Delia

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Agronomía, Biotecnología y Alimentación

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IMAB. Research Institute for Multidisciplinary Applied Biology

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0000-0002-9728-1456

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88558

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2271

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Start date: 2021 × Subject: AcMNPV ×

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    PublicationOpen Access
    The parasitoid hyposoter didymator can transmit a broad host range baculovirus in a two host system
    (MDPI, 2023) Morel, Ariel; Leigh, Brendan; Muñoz Labiano, Delia; Caballero Murillo, Primitivo; Medina, Pilar; Dáder, Beatriz; Agronomía, Biotecnología y Alimentación; Agronomia, Bioteknologia eta Elikadura
    Hyposoter didymator (Thunberg) (Hymenoptera: Ichneumonidae) and baculovirus (BV) might be used jointly to provide effective control of the Spodoptera genus. The literature has mostly covered the safe compatibility between natural enemies and BV-based insecticides, but research on the potential dispersal of BV by natural enemies is lacking. Thus, the goal of this manuscript was to ascertain if H. didymator was able to disperse the broad host range of Autographa californica nucleopolyhedrovirus (AcMNPV) to Spodoptera littoralis and Spodoptera exigua in choice and non-choice conditions and whether the preference of the parasitoid by one of these noctuids could mediate this dispersion. It was previously needed to improve the rearing of the parasitoid in the laboratory, concerning the optimal host age and length of parasitization, parasitoid competition, and influence of parasitization on the longevity of females. The best rearing conditions for S. littoralis are collective parasitization of mature L3 larvae for 24 h, after at least one day of copulation. Hyposoter didymator transmits AcMNPV to both lepidopterans, but its efficiency is mediated by host preference and the pathogenicity of the BV in each host. In this particular case, H. didymator as well as AcMNPV showed a clear preference towards S. exigua.