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Physiological host range and occurrence of Trissolcus japonicus, a parasitoid of the brown marmorated stink bug in southern Ontario

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dc.contributor.advisor Scott-Dupree, Cynthia
dc.contributor.advisor Gariepy, Tara
dc.contributor.author MacDonald, Caitlin
dc.date.accessioned 2021-09-17T17:20:22Z
dc.date.available 2021-09-17T17:20:22Z
dc.date.copyright 2021-09
dc.date.created 2021-08-05
dc.identifier.uri https://hdl.handle.net/10214/26467
dc.description.abstract Trissolcus japonicus (Hymenoptera: Scelionidae), is an egg parasitoid of Halyomorpha halys (Hemiptera: Pentatomidae), the brown marmorated stink bug. Halyomorpha halys is a serious invasive agricultural pest in Europe and North America, and insecticides appear to be of limited efficacy. Trissolcus japonicus is being considered as a classical biological control agent in regions where H. halys is established, and has been discovered in London, Ontario in 2017. This thesis investigated the occurrence of T. japonicus in southern Ontario, as well as its physiological host range on non-target stink bugs in Ontario. Data collected in 2019 and 2020 demonstrated that T. japonicus populations continue to persist in London, but were not found in other areas of southern Ontario. The physiological host range of T. japonicus was demonstrated to include six out of nine non-target stink bugs, and three of these six stink bugs were less likely to be attacked than H. halys. en_US
dc.language.iso en en_US
dc.publisher University of Guelph en_US
dc.subject Biological control en_US
dc.subject Integrated pest management en_US
dc.subject Non-target effects en_US
dc.subject Parasitoid en_US
dc.subject Risk assessment en_US
dc.subject Trissolcus japonicus en_US
dc.subject Halyomorpha halys en_US
dc.title Physiological host range and occurrence of Trissolcus japonicus, a parasitoid of the brown marmorated stink bug in southern Ontario en_US
dc.type Thesis en_US
dc.degree.programme Environmental Sciences en_US
dc.degree.name Master of Science en_US
dc.degree.department School of Environmental Sciences en_US
dc.rights.license All items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.
dc.degree.grantor University of Guelph en_US


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