Determining insecticide resistance of Stegomyia spp. in Texas

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dc.contributor.committeeChairSteven M. Presley,
dc.contributor.committeeMemberTodd Anderson,
dc.creatorWilson-Fallon, Alexander N.
dc.date.accessioned2024-03-04T17:03:36Z
dc.date.available2024-03-04T17:03:36Z
dc.date.issued2018-05
dc.description.abstractAedes (Stegomyia) aegypti and Aedes (Stegomyia) albopictus are known vectors of dengue, chikungunya, yellow fever, and Zika viruses. While source reduction is the primary method used to control these container-breeding mosquitoes, the difficulty in doing so makes insecticides the most feasible and effective control strategy. Reliance on chemical control has resulted in resistant mosquito populations globally, therefore decreasing the overall effectiveness of vector control operations and facilitating increased disease transmission. Insecticide resistance monitoring is a crucial tool that can identify developing mosquito resistance before it compromises control efforts. Monitoring for insecticide resistance is ideal in all entities with vector control capacity, however it is not always achievable due to financial and operational limitations. In the United States, insecticide resistance surveillance is limited and few published studies exist considering insecticide resistance in Stegomyia spp. The primary goals of this project were (1) to determine if Stegomyia spp. are resistant or becoming resistant to currently utilized insecticides by Texas vector control entities, and (2) to investigate and justify the use of male mosquitoes in laboratory-based insecticide resistance monitoring operations. My research revealed that (1) Stegomyia spp. in Texas counties have various levels of resistance to pyrethroids and organophosphates, (2) Ae. albopictus in Texas is more resistant to permethrin than malathion, (3) Ae. aegypti is more resistant than Ae. albopictus, and (4) there was no significant difference between male and female mortality in Ae. albopictus mosquitoes originating from Lubbock County.
dc.format.mimetypeApplication/pdf
dc.identifier.urihttps://hdl.handle.net/2346/97690
dc.language.isoen
dc.rights.availabilityRestricted until 03/2023.
dc.subjectMosquito
dc.subjectAedes aegypti
dc.subjectAedes albopictus
dc.subjectStegomyia
dc.subjectInsecticide Resistance
dc.titleDetermining insecticide resistance of Stegomyia spp. in Texas
dc.typeThesis
thesis.degree.departmentEnvironmental Toxicology
thesis.degree.disciplineEnvironmental Toxicology
thesis.degree.grantorTexas Tech University
thesis.degree.nameMasters
thesis.degree.nameMaster of Science

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