Parental host species affects behavior and parasitism by the pentatomid egg parasitoid, Trissolcus japonicus (Hymenoptera: Scelionidae)

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dc.contributor.authorBoyle, Sean M.en
dc.contributor.authorWeber, Donald C.en
dc.contributor.authorHough-Goldstein, Judithen
dc.contributor.authorHoelmer, Kim A.en
dc.contributor.departmentEntomologyen
dc.date.accessioned2021-03-10T13:52:42Zen
dc.date.available2021-03-10T13:52:42Zen
dc.date.issued2020-10en
dc.description.abstractThe samurai wasp, Trissolcus japonicus, is the primary natural enemy of the invasive brown marmorated stink bug, Halyomorpha halys, in its native range of Asia. Laboratory tests have found that the wasp can parasitize numerous native pentatomid species in North America, yet many potentially influential factors involved with T. japonicus host acceptance and host suitability are understudied. In this study we evaluated the effects of host related semiochemicals and parental host species on T. japonicus host foraging behavior and host parasitism. To address possible influences of parental host species, separate parasitoid lines were established using H. halys and native predatory pentatomid Podisus maculiventris eggs as hosts. Female T. japonicus from both host types were exposed to soybean (Glycine max) leaf surfaces contaminated by adult kairomones of either host species in behavioral assays. Females from each host type were also subject to no-choice tests in which they were exposed to either H. halys or P. maculiventris egg masses in large mesh cages. Each female used in the no-choice tests was weighed and their right hind tibiae were measured to identify possible phenotypic plasticity. Results from the behavioral assays suggest that T. japonicus exhibits some degree of host fidelity while searching for hosts. Females which emerged from P. maculiventris eggs resided for equal amounts of time on leaves contaminated with kairomones from either stink bug species. Differences in no-choice test performance were not found between the two host types, as parasitism rates and host suitability were determined to be dependent on exposed host species and not the parasitoid parental host species. T. japonicus which emerged from H. halys possessed longer right hind tibiae and weighed roughly twice as much as wasps which emerged from P. maculiventris.en
dc.description.adminPublic domain – authored by a U.S. government employeeen
dc.description.notesWe thank Kathleen Tatman and Patricia Stout for their technical assistance, and Dr. Douglas Tallamy for comments on an earlier version of the manuscript. We would also like to thank the Xinqiao Jia research group at the University of Delaware for providing equipment to acquire our parasitoid weight data. This research was supported by the USDAARS Cooperative Agreement #58-8010-5-012.en
dc.description.sponsorshipUSDAARS Cooperative AgreementUnited States Department of Agriculture (USDA)USDA Agricultural Research Service [58-8010-5-012]en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1016/j.biocontrol.2020.104324en
dc.identifier.eissn1090-2112en
dc.identifier.issn1049-9644en
dc.identifier.other104324en
dc.identifier.urihttp://hdl.handle.net/10919/102644en
dc.identifier.volume149en
dc.language.isoenen
dc.rightsPublic Domainen
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/en
dc.subjectBrown marmorated stink bugen
dc.subjectSamurai waspen
dc.subjectKairomonesen
dc.subjectHost specificityen
dc.subjectParasitoid-host interactionsen
dc.titleParental host species affects behavior and parasitism by the pentatomid egg parasitoid, Trissolcus japonicus (Hymenoptera: Scelionidae)en
dc.title.serialBiological Controlen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

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