Insects (2020) 11 (5 - 306)

Davide Scaccini, Martina Falagiarda, Francesco Tortorici, Isabel Martinez-Sañudo, Paola Tirello, Yazmid Reyes-Domínguez, Andreas Gallmetzer, Luciana Tavella, Pietro Zandigiacomo, Carlo Duso and Alberto Pozzebon (2020)
An insight into the role of Trissolcus mitsukurii as biological control agent of Halyomorpha halys in northeastern Italy
Insects 11 (5 - 306)
Abstract: Sustainable strategies such as classical or augmentative biological control are currently being evaluated for the long-term management of the alien invasive pest Halyomorpha halys (Stål) (Hemiptera: Pentatomidae). A three-year study carried out in northeastern Italy was performed to investigate the distribution and field performance of the H. halys egg parasitoid Trissolcus mitsukurii (Ashmead) (Hymenoptera: Scelionidae), in comparison with other parasitoid species. In the study area, adventive populations of T. mitsukurii were present since 2016, representing the earliest detection of this species in Europe. Trissolcus mitsukurii was the most abundant parasitoid and showed a higher "parasitoid impact" (i.e., number of parasitized eggs over the total number of field-collected eggs) compared to the other species, i.e., Anastatus bifasciatus (Geoffroy) (Hymenoptera: Eupelmidae), Trissolcus basalis (Wollaston) and Trissolcus kozlovi Rjachovskij (Hymenoptera: Scelionidae). The hyperparasitoid Acroclisoides sinicus (Huang and Liao) (Hymenoptera: Pteromalidae) was also recorded. Phylogenetic analysis of T. mitsukurii population distinguished two clades, one covering samples from Italy, Japan and China, the other from South Korea. The present study provides promising results for the biological control of a pest that is having a dramatic impact on a wide range of crops worldwide.
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Full text of article
Database assignments for author(s): Luciana Tavella, Pietro Zandigiacomo, Carlo Duso, Alberto Pozzebon

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
surveys/distribution/isolation
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Halyomorpha halys		Italy
Trissolcus mitsukurii (parasitoid)	Halyomorpha halys		Italy