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HOST PLANT-MEDIATED INTERSPECIFIC COMPETITION VIA INDUCED RESISTANCE: INTERACTIONS BETWEEN THE POTATO LEAFHOPPER AND THE COLORADO POTATO BEETLE

dc.contributor.advisorDenno, Robert Fen_US
dc.contributor.advisorDively, Galen Pen_US
dc.contributor.authorLynch, Margaret Emmaen_US
dc.date.accessioned2005-08-03T14:46:33Z
dc.date.available2005-08-03T14:46:33Z
dc.date.issued2005-05-03en_US
dc.identifier.urihttp://hdl.handle.net/1903/2549
dc.description.abstractInterspecific competition has seen a renaissance over the last several decades and has become recognized as an important force influencing the structure of phytophagous insect communities. This research examined interspecific competition, mediated through a shared host plant, between the potato leafhopper (PLH) and the Colorado potato beetle (CPB), two important pests on potatoes. In Maryland, PLH colonize fields in advance of CPB due to management practices and differences in the migration behavior of these two herbivores. Results show that previous feeding by PLH adversely affected oviposition preference and larval performance of CPB in both greenhouse and field-cage experiments. Results suggest that these two herbivores compete through feeding-induced changes in plant physiology or morphology. This research has important implications for the management of agricultural pests such that higher densities of PLH should be tolerated before controls are instigated due to the benefits of CPB reduction that accrue via leafhopper-induced plant resistance.en_US
dc.format.extent362258 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.titleHOST PLANT-MEDIATED INTERSPECIFIC COMPETITION VIA INDUCED RESISTANCE: INTERACTIONS BETWEEN THE POTATO LEAFHOPPER AND THE COLORADO POTATO BEETLEen_US
dc.typeThesisen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.contributor.departmentEntomologyen_US
dc.subject.pqcontrolledBiology, Entomologyen_US
dc.subject.pqcontrolledBiology, Ecologyen_US
dc.subject.pquncontrolledinduced resistanceen_US
dc.subject.pquncontrolledinterspecific competitionen_US
dc.subject.pquncontrolledColorado potato beetleen_US
dc.subject.pquncontrolledpotato leafhopperen_US
dc.subject.pquncontrolledintegrated pest managementen_US
dc.subject.pquncontrolledspecies interactionsen_US


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