The Canadian Entomologist (2019) 151, 824-826

Tara D. Gariepy and Elijah J. Talamas (2019)
Discovery of Trissolcus japonicus (Hymenoptera: Scelionidae) in Ontario, Canada
The Canadian Entomologist 151 (6), 824-826
Abstract: We report the detection and adventive establishment of the samurai wasp, Trissolcus japonicus (Ashmead) (Hymenoptera: Scelionidae), a candidate classical biological control agent for the invasive Halyomorpha halys (Stål) (Hemiptera: Pentatomidae), in southwestern Ontario, Canada. Nine naturally laid, field-collected pentatomid egg masses were collected in 2017 and 2018, and two of these egg masses, belonging to Halyomorpha halys and Podisus maculiventris (Say) (Hemiptera: Pentatomidae), produced adults of T. japonicus. The identification of T. japonicus was confirmed using DNA barcoding as well as morphological characteristics. The remaining egg masses yielded adults of the native Telenomus podisi Ashmead (Hymenoptera: Platygastridae) and Anastatus reduvii (Ashmead) (Hymenoptera: Eupelmidae).
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Link to article at publishers website
Database assignments for author(s): Tara Dawne Gariepy

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

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Halyomorpha halys
Podisus maculiventris (predator)			Canada (east)
Telenomus podisi (parasitoid)			Canada (east)
Trissolcus japonicus (parasitoid)	Halyomorpha halys		Canada (east)
Anastatus reduvii (parasitoid)			Canada (east)