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First Detection of the Adventive Egg Parasitoid of Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) Trissolcus mitsukurii (Ashmead) (Hymenoptera: Scelionidae) in France

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INRAE, UMR INRAE 1355 CNRS 7254, Institut Sophia Agrobiotech, Université Côté d’Azur, 400 route des Chappes, 06903 Sophia Antipolis, France
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Dipartimento di Scienze Agrarie, Forestali e Alimentari, University of Torino, Largo P. Braccini 2, 10095 Grugliasco, Italy
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ANPN, Association Nationale des Producteurs de Noisettes, Lieu-dit Louberie, 47290 Cancon, France
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Unicoque, Noix et Noisettes de France, Lieu-dit de Louberie, 47290 Cancon, France
*
Author to whom correspondence should be addressed.
Academic Editor: Andrew Polaszek
Insects 2021, 12(9), 761; https://doi.org/10.3390/insects12090761
Received: 21 July 2021 / Revised: 17 August 2021 / Accepted: 18 August 2021 / Published: 24 August 2021
(This article belongs to the Section Insect Ecology, Diversity and Conservation)
The invasive brown marmorated stink bug (BMSB), Halyomorpha halys, is a polyphagous species and a serious pest worldwide. Classical biological control (CBC), i.e., the introduction of a natural enemy from the native area of the pest, is considered as the preferential solution for BMSB regulation. Adventive populations of exotic egg parasitoids of BSMB, Trissolcus japonicus and T. mitsukurii, have been reported worldwide. With the aim to characterize the French diversity of egg parasitoids associated to various stink bugs including BMSB, field surveys were conducted between 2018 and 2020. Surprisingly, morphological and molecular analyses unambiguously revealed 12 specimens of T. mitsukurii, an Asian egg parasitoid of BSMB. Although its permanent establishment has to be confirmed, this first record in France could actually facilitate CBC initiatives, T. mitsukurii being considered with T. japonicus as the two most promising biological control agents against BMSB.
We report the first detection of Trissolcus mitsukurii in France. More than 1860 sentinel egg masses of Halyomorpha halys (BMSB) were exposed in the field during the 2018–2020 period, and 12 specimens of T. mitsukurii emerged from one egg mass. Their taxonomic identification was confirmed both by morphological and molecular analysis. Trissolcus mitsukurii, similar to T. japonicus, is an egg parasitoid of BMSB in its area of origin in Asia, and both species are considered to be candidates for a classical biological control strategy against BMSB. Trissolcus mitsukurii was previously recorded in Italy where it is well established and widespread, and this may be the source of the French population. Possible permanent establishment and dispersion of T. mitsukurii in France should be monitored with emphasis on its potential effect on BMSB populations. View Full-Text
Keywords: biological control; tramp species; DNA barcoding; exotic species; brown marmorated stink bug biological control; tramp species; DNA barcoding; exotic species; brown marmorated stink bug
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MDPI and ACS Style

Bout, A.; Tortorici, F.; Hamidi, R.; Warot, S.; Tavella, L.; Thomas, M. First Detection of the Adventive Egg Parasitoid of Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) Trissolcus mitsukurii (Ashmead) (Hymenoptera: Scelionidae) in France. Insects 2021, 12, 761. https://doi.org/10.3390/insects12090761

AMA Style

Bout A, Tortorici F, Hamidi R, Warot S, Tavella L, Thomas M. First Detection of the Adventive Egg Parasitoid of Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) Trissolcus mitsukurii (Ashmead) (Hymenoptera: Scelionidae) in France. Insects. 2021; 12(9):761. https://doi.org/10.3390/insects12090761

Chicago/Turabian Style

Bout, Alexandre, Francesco Tortorici, Rachid Hamidi, Sylvie Warot, Luciana Tavella, and Maud Thomas. 2021. "First Detection of the Adventive Egg Parasitoid of Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) Trissolcus mitsukurii (Ashmead) (Hymenoptera: Scelionidae) in France" Insects 12, no. 9: 761. https://doi.org/10.3390/insects12090761

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