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dc.contributor.advisorHuber, Rogeren_US
dc.contributor.authorSimmons, Amanda Lee, 1970-
dc.creatorSimmons, Amanda Lee, 1970-en_US
dc.date.accessioned2013-05-16T09:51:07Z
dc.date.available2013-05-16T09:51:07Z
dc.date.issued1996en_US
dc.identifier.urihttp://hdl.handle.net/10150/292013
dc.description.abstractThree resistance monitoring methods, leaf disk, sticky trap, and vial, were tested to evaluate their relative reliability, discriminating ability, convenience, and practicality for monitoring insecticide resistance in Arizona whiteflies. Each method was evaluated against two field populations divergent in susceptibility using a mixture of fenpropathrin + acephate and two single chemicals, endosulfan and fenpropathrin. Correlations of field efficacy and leaf disk bioassays resistance estimates were conducted with the Yuma population and a comparatively resistant Maricopa population. At each location egg, immature, and adult whitefly densities were monitored before and after fenpropathrin + acephate treatments. The three methods had advantages and disadvantages. The leaf disk method had the greatest discriminating ability, the vial method was the most practical, and the sticky trap method was good at discriminating populations that had large differences in susceptibility. The field efficacy trials indicated good concordance between the leaf disk assays results and field performance.
dc.language.isoen_USen_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.subjectBiology, Entomology.en_US
dc.titleAn experimental validation of resistance monitoring techniques for Arizona whiteflyen_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
thesis.degree.grantorUniversity of Arizonaen_US
thesis.degree.levelmastersen_US
dc.identifier.proquest1381793en_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineAgricultural Educationen_US
thesis.degree.nameM.Sc.en_US
dc.identifier.bibrecord.b3429661xen_US
refterms.dateFOA2018-08-30T04:02:38Z
html.description.abstractThree resistance monitoring methods, leaf disk, sticky trap, and vial, were tested to evaluate their relative reliability, discriminating ability, convenience, and practicality for monitoring insecticide resistance in Arizona whiteflies. Each method was evaluated against two field populations divergent in susceptibility using a mixture of fenpropathrin + acephate and two single chemicals, endosulfan and fenpropathrin. Correlations of field efficacy and leaf disk bioassays resistance estimates were conducted with the Yuma population and a comparatively resistant Maricopa population. At each location egg, immature, and adult whitefly densities were monitored before and after fenpropathrin + acephate treatments. The three methods had advantages and disadvantages. The leaf disk method had the greatest discriminating ability, the vial method was the most practical, and the sticky trap method was good at discriminating populations that had large differences in susceptibility. The field efficacy trials indicated good concordance between the leaf disk assays results and field performance.


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