Combined Action of Sex Pheromone and Wasp Apanteles gelechiidivoris in Greenhouse Tomato Crops

Morales, Jessica; Muñoz, Laura; Rodríguez, Daniel; Cantor, Fernando

doi:10.15446/abc.v19n2.38202

Cited by 6 publications

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References 8 publications

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“…Dolichogenidea gelechiidivoris parasitised all larval stages of T. absoluta with a preference for the early instar larvae [ 20 ]. The parasitoid has the potential to achieve a parasitism rate of up to 86% on T. absoluta larvae [ 21 ]. Dolichogenidea gelechiidivoris was lately released in East African countries (Kenya, Uganda, and Ethiopia) to control T. absoluta [ 22 ], and significant impact is expected from this parasitoid [ 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Interactions between the Entomopathogenic Fungus Metarhizium anisopliae ICIPE 20 and the Endoparasitoid Dolichogenidea gelechiidivoris, and Implications for Combined Biocontrol of Tuta absoluta

Sambo

Akutse

Plessis

et al. 2022

Biology

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The Integrated Pest Management (IPM) approach have been widely promoted and used for the management of native and invasive pests, while the use of various components of the IPM can have a synergetic, additive, or antagonistic effect on each other; this study evaluated the susceptibility of Dolichogenidea gelechiidivoris (Marsh) (Hymenoptera: Braconidae), to the Metarhizium anisopliae (Metschnikoff) ICIPE 20 through direct and indirect infection approaches. The effect of fungus on parasitoid longevity, survival of parasitized-larvae, preference of the parasitoid to fungal treated and untreated larvae, and percent parasitism of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) under different infection scenarios were assessed. The direct application of dry conidia to the parasitoid prior to exposure to the host, reduced D. gelechiidivoris longevity, though the infected female wasps still yielded high parasitism (over 70%). Infecting the parasitized larvae at different ages led to a respective reduction of parasitoid emergence by 35% and 23% for infection at 1 and 5 days post-parasitisation. Exposure of healthy-D. gelechiidivoris adults to a plant-sprayed with fungus did not affect their longevity, and no discriminatory host selection was observed. The highest mortality (~80%) of T. absoluta was achieved when D. gelechiidivoris and M. anisopliae ICIPE 20 were used in combination, indicating an additive impact on the target pest; however, field validation can shed more light on this outcome.

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Section: Introductionmentioning

confidence: 99%

Interactions between the Entomopathogenic Fungus Metarhizium anisopliae ICIPE 20 and the Endoparasitoid Dolichogenidea gelechiidivoris, and Implications for Combined Biocontrol of Tuta absoluta

Sambo

Akutse

Plessis

et al. 2022

Biology

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A re-examination of Tuta absoluta parasitoids in South America for optimized biological control

et al. 2019

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We conducted a review of published information on Tuta absoluta parasitoids for the Neotropical region to (1) corroborate species records, (2) analyze associations including the T. absoluta, other insect and plant hosts and (3) identify research directions for enhancing their use as biological control agents. The literature review shows more than 50 species or morphospecies of Hymenoptera associated with T. absoluta, but less than a half (23) could be confirmed as parasitizing T. absoluta. Erroneous reports or invalid names of species, two new species records were found. Over a 100 pests and non-economically important insect and cultivated and non-cultivated plants directly or indirectly interact with T. absoluta in the region. Four T. absoluta parasitoid species include in their host range predatory insects or act as hyperparasitoids, a negative feature considered for a biological control agent. Five larval parasitoids have a narrow host range and could be considered for classical biological control programs in the areas of new invasion. Six Trichogrammatidae species are commercially used in various countries; of those, T. minutum and T. pretiosum are considered to be moderately generalist, being able to exploit several insect hosts. Apart from Apanteles gelechiidivoris and Pseudapanteles dignus, other native species have been the subject of field studies as biological control agents. The review presented here provides useful insights for identifying species that deserve further evaluation as T. absoluta biological control agents through augmentative or conservation strategies in South America, as well as for potential classical biological control programs in other continents. Keywords Taxonomy • Parasitoid ecology • South American tomato pinworm • Host range • Food webs Key message• We provide a review of published records on Tuta absoluta parasitoids of the Neotropics. • From more than 50 parasitoid species or morphospecies reported, only 23 hymenopteran species were confirmed as T. absoluta natural enemies. • Other insect hosts, their host plants and the current knowledge on their potential as biological control agents were tracked. • The low number of available parasitoids and those thathave not yet been identified suggest that much work remains for optimizing the existing biological control services provided by T. absoluta parasitoids.Communicated by M. Traugott.SPECIAL ISSUE 2019: The South American tomato pinworm Tuta absoluta: recent advances in management methods against the background of an ongoing worldwide invasion.

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Integrated pest management of Tuta absoluta: practical implementations across different world regions

et al. 2021

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Combined Action of Sex Pheromone and Wasp Apanteles gelechiidivoris in Greenhouse Tomato Crops

Cited by 6 publications

References 8 publications

Interactions between the Entomopathogenic Fungus Metarhizium anisopliae ICIPE 20 and the Endoparasitoid Dolichogenidea gelechiidivoris, and Implications for Combined Biocontrol of Tuta absoluta

Interactions between the Entomopathogenic Fungus Metarhizium anisopliae ICIPE 20 and the Endoparasitoid Dolichogenidea gelechiidivoris, and Implications for Combined Biocontrol of Tuta absoluta

A re-examination of Tuta absoluta parasitoids in South America for optimized biological control

Integrated pest management of Tuta absoluta: practical implementations across different world regions

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