Permethrin Susceptibility for the Vector Culex tarsalis and a Nuisance Mosquito Aedes vexans in an Area Endemic for West Nile Virus

In 2016, we compared susceptibility to the insecticide, permethrin, between the West Nile virus vector, Culex tarsalis Coquillett, and a major nuisance mosquito, Aedes vexans (Meigen), using baseline diagnostic dose and time values determined using the CDC bottle bioassay protocol. Mosquitoes were c...

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Bibliographic Details
Published in:BioMed research international 2018-01, Vol.2018 (2018), p.1-7
Main Authors: Vincent, Geoffrey P., Davis, Justin K., Wimberly, Michael C., Carlson, Christopher D., Hildreth, Michael B.
Format: Article
Language:English
Subjects:
Aedes
Aedes vexans
Animals
Aquatic insects
Bioassays
Comparative analysis
Culex - drug effects
Culex - virology
Culex tarsalis
Diagnostic systems
Disease control
Genetic vectors
Health aspects
Insect control
Insect Vectors
Insecticides
Insecticides - pharmacology
Malaria
Mortality
Mosquito Vectors
Mosquitoes
Nuisance
Permethrin
Permethrin - pharmacology
Studies
Viruses
West Nile fever
West Nile Fever - prevention & control
West Nile virus
Zika virus
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Summary:In 2016, we compared susceptibility to the insecticide, permethrin, between the West Nile virus vector, Culex tarsalis Coquillett, and a major nuisance mosquito, Aedes vexans (Meigen), using baseline diagnostic dose and time values determined using the CDC bottle bioassay protocol. Mosquitoes were collected in the wild in Brookings County, South Dakota, situated in the Northern Great Plains of the USA. The determined diagnostic dose and time were then used in 2017 to validate these measurements for the same 2 mosquito species, collected at a second location within Brookings County. The diagnostic dose was determined for multiple time periods and ranged from 27.0 µg/ml at 60 min to 38.4 µg/ml at 30 min. There was no significant difference detected in mortality rates between Cx. tarsalis and Ae. vexans for any diagnostic time and dose. For practical purposes, mosquitoes in 2017 were tested at 38 µg/ml for 30 min; expected mortality rates were 93.38% for Cx. tarsalis and 94.93% for Ae. vexans. Actual 2017 mortality rates were 92.68% for Cx. tarsalis and 96.12% for Ae. vexans, validating the usefulness of this baseline at an additional location and year.
ISSN:2314-6133
2314-6141
2314-6141
DOI:10.1155/2018/2014764