Plant-insect interactions between yellow toadflax, Linaria vulgaris, and a potential biocontrol agent, the gall-forming weevil, Rhinusa pilosa

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dc.contributor.authorBarnewall, Emily C.
dc.contributor.authorUniversity of Lethbridge. Faculty of Arts and Science
dc.contributor.supervisorDe Clerck-Floate, Rosemarie
dc.contributor.supervisorGoater, Cameron P.
dc.date.accessioned2012-03-02T16:35:55Z
dc.date.available2012-03-02T16:35:55Z
dc.date.issued2011
dc.degree.levelMasters
dc.descriptionix, 168 leaves : ill. (chiefly col.) ; 29 cmen_US
dc.description.abstractYellow toadflax, Linaria vulgaris (L.) Mill. (Plantaginaceae), is a non-native invasive plant. Rhinusa pilosa Germar (Coleoptera: Curculionidae) is a proposed biocontrol agent. Gall development by R. pilosa was described using histological methods and compared between plant populations from native and introduced ranges. Key stages of oviposition were isolated histologically to determine their importance in gall induction. Rhinusa pilosa galled and developed on four geographically distinct Canadian populations in a pre-release quarantine study. Low agent densities only negatively affected one population. High densities of R. pilosa reduced potential reproductive output and plant biomass. Conducting detailed investigations into the biology, impact, and development of R. pilosa on populations from invasive and native ranges may help predict the efficacy of R. pilosa in the field if approved for release and.goes beyond current pre-release testing requirements.en_US
dc.identifier.urihttps://hdl.handle.net/10133/2618
dc.language.isoen_USen_US
dc.publisherLethbridge, Alta. : University of Lethbridge, Department of Biological Sciences, c2011en_US
dc.publisher.departmentDepartment of Biological Sciencesen_US
dc.publisher.facultyArts and Scienceen_US
dc.relation.ispartofseriesThesis (University of Lethbridge. Faculty of Arts and Science)en_US
dc.subjectLinaria vulgaris -- Biological control -- Researchen_US
dc.subjectBiological pest control agentsen_US
dc.subjectInsects as biological pest control agents -- Researchen_US
dc.subjectBeetles -- Host plantsen_US
dc.subjectWeeds -- Biological controlen_US
dc.subjectDissertations, Academicen_US
dc.titlePlant-insect interactions between yellow toadflax, Linaria vulgaris, and a potential biocontrol agent, the gall-forming weevil, Rhinusa pilosaen_US
dc.typeThesisen_US
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