Widespread insecticide resistance in Aedes aegypti L. from New Mexico, U.S.A

PloS One
Yashoda KandelImmo A Hansen

Abstract

Aedes aegypti mosquitoes are vectors of a variety of emerging viral pathogens, including yellow fever, dengue, chikungunya, and Zika virus. This species has established endemic populations in all cities across southern New Mexico sampled to date. Presently, control of Aedes-borne viruses relies on deployment of insecticides to suppress mosquito populations, but the evolution of insecticide resistance threatens the success of vector control programs. While insecticide resistance is quite common in Ae. aegypti field populations across much of the U.S., the resistance status of this species in populations from New Mexico has not previously been assessed. First, we collected information on pesticide use in cities in southern New Mexico and found that the most commonly used active ingredients were pyrethroids. The use of insecticides with the same mode-of-action over multiple years is likely to promote the evolution of resistance. To determine if there was evidence of resistance in some cities in southern New Mexico, we collected Ae. aegypti from the same cities and established laboratory strains to assess resistance to pyrethroid insecticides and, for a subset of populations, to organophosphate insecticides. F2 or F4 generation mos...Continue Reading

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Citations

Apr 18, 2020·PLoS Neglected Tropical Diseases·Yinjun FanJeffrey G Scott
May 8, 2020·Archives of Insect Biochemistry and Physiology·Mengli ChenKe Dong
Sep 18, 2020·PLoS Neglected Tropical Diseases·Yashoda KandelImmo A Hansen
Jun 30, 2021·Journal of the American Mosquito Control Association·Nicholas R LarsonMark Feldlaufer
Jul 15, 2021·Scientific Reports·Ephantus J MuturiDongyoung Shin
Dec 15, 2021·PLoS Neglected Tropical Diseases·Yurany GranadaOmar Triana-Chávez

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Methods Mentioned

BETA
PCR

Software Mentioned

XLSTAT
VectoBac
Primer Blast
Seqman

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