Indirect Effects of Imidacloprid on Natural Enemies of Spider Mites in Two Systems

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dc.contributor.advisorRaupp, Michael Jen_US
dc.contributor.authorCreary, Scotten_US
dc.contributor.departmentEntomologyen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2009-07-03T05:43:34Z
dc.date.available2009-07-03T05:43:34Z
dc.date.issued2009en_US
dc.description.abstractWith a growing number of reports showing secondary outbreaks of spider mites following systemic applications of imidacloprid, a study was designed to test the indirect effects of this insecticide on natural enemies of spider mites. We exposed two predators, Chrysoperla rufilabris and Stethorus punctillum, to mites that were reared on boxwoods and elms treated with imidacloprid and examined prey consumption, predator mobility and mortality. Mites reared on treated foliage were extremely toxic to predators, eliciting sharp reductions in feeding, locomotion, and longevity. These findings document that non-target pests feeding on plants treated with imidacloprid cause lethal and sublethal responses in natural enemies. We discuss implications on the compatibility of imidacloprid with IPM practices and infer impacts on generalist and specialist natural enemies.en_US
dc.format.extent207278 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1903/9350
dc.language.isoen_US
dc.subject.pqcontrolledBiology, Entomologyen_US
dc.subject.pqcontrolledAgriculture, Horticultureen_US
dc.subject.pquncontrolledBoxwooden_US
dc.subject.pquncontrolledElmen_US
dc.subject.pquncontrolledImidaclopriden_US
dc.subject.pquncontrolledLacewingen_US
dc.subject.pquncontrolledSpider Miteen_US
dc.subject.pquncontrolledStethorusen_US
dc.titleIndirect Effects of Imidacloprid on Natural Enemies of Spider Mites in Two Systemsen_US
dc.typeThesisen_US

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