Temperatures Influence Susceptibility to Insecticides in <i>Aedes aegypti</i> and <i>Aedes albopictus</i> (Diptera: Culicidae) Mosquitoes
<i>Aedes aegypti</i> and <i>Aedes albopictus</i> (Diptera: Culicidae) are vectors for several arboviruses, including dengue, Zika virus and chikungunya virus. The primary method of controlling these diseases is controlling the vector population, often with insecticides. Insec...
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MDPI AG
2021-08-01
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| Series: | Pathogens |
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| Online Access: | https://www.mdpi.com/2076-0817/10/8/992 |
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| author | Wendy S. Salinas Teresa P. Feria-Arroyo Christopher J. Vitek |
| author_facet | Wendy S. Salinas Teresa P. Feria-Arroyo Christopher J. Vitek |
| author_sort | Wendy S. Salinas |
| collection | DOAJ |
| description | <i>Aedes aegypti</i> and <i>Aedes albopictus</i> (Diptera: Culicidae) are vectors for several arboviruses, including dengue, Zika virus and chikungunya virus. The primary method of controlling these diseases is controlling the vector population, often with insecticides. Insecticide resistance may impact the success of these efforts. We tested the effect of variable temperature exposures on susceptibility to insecticides by exposing adult <i>A.</i><i>aegypti</i> and <i>A. albopictus</i> to different temperatures and tested their susceptibility to insecticides. We hypothesized that adults maintained at high temperatures would show increased susceptibility to insecticides relative to lower temperatures. Colony mosquitoes were hatched, reared to adulthood and then maintained in three temperature regimes that reflect average seasonal temperatures in the Rio Grande Valley, TX. Susceptibility to permethrin and deltamethrin was assessed using the CDC bottle bioassay method. Overall <i>Aedes albopictus</i> had higher susceptibility to all insecticides than <i>Aedes aegypti</i>. Mosquitoes kept at different temperatures exhibited differential susceptibility to insecticides. Low temperature exposed mosquitoes had decreased susceptibility while high temperature conditions resulted in increased mortality. Our results suggest public health officials must consider temperature effects when controlling mosquitoes with insecticides. |
| first_indexed | 2024-03-10T08:30:19Z |
| format | Article |
| id | doaj.art-8157ef19fb5b4220a53b1f6f560f791a |
| institution | Directory Open Access Journal |
| issn | 2076-0817 |
| language | English |
| last_indexed | 2024-03-10T08:30:19Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Pathogens |
| spelling | doaj.art-8157ef19fb5b4220a53b1f6f560f791a2023-11-22T09:09:08ZengMDPI AGPathogens2076-08172021-08-0110899210.3390/pathogens10080992Temperatures Influence Susceptibility to Insecticides in <i>Aedes aegypti</i> and <i>Aedes albopictus</i> (Diptera: Culicidae) MosquitoesWendy S. Salinas0Teresa P. Feria-Arroyo1Christopher J. Vitek2Center for Vector-Borne Disease, Biology Department, The University of Texas Rio Grande Valley, 1201 West University Dr, Edinburg, TX 78539, USACenter for Vector-Borne Disease, Biology Department, The University of Texas Rio Grande Valley, 1201 West University Dr, Edinburg, TX 78539, USACenter for Vector-Borne Disease, Biology Department, The University of Texas Rio Grande Valley, 1201 West University Dr, Edinburg, TX 78539, USA<i>Aedes aegypti</i> and <i>Aedes albopictus</i> (Diptera: Culicidae) are vectors for several arboviruses, including dengue, Zika virus and chikungunya virus. The primary method of controlling these diseases is controlling the vector population, often with insecticides. Insecticide resistance may impact the success of these efforts. We tested the effect of variable temperature exposures on susceptibility to insecticides by exposing adult <i>A.</i><i>aegypti</i> and <i>A. albopictus</i> to different temperatures and tested their susceptibility to insecticides. We hypothesized that adults maintained at high temperatures would show increased susceptibility to insecticides relative to lower temperatures. Colony mosquitoes were hatched, reared to adulthood and then maintained in three temperature regimes that reflect average seasonal temperatures in the Rio Grande Valley, TX. Susceptibility to permethrin and deltamethrin was assessed using the CDC bottle bioassay method. Overall <i>Aedes albopictus</i> had higher susceptibility to all insecticides than <i>Aedes aegypti</i>. Mosquitoes kept at different temperatures exhibited differential susceptibility to insecticides. Low temperature exposed mosquitoes had decreased susceptibility while high temperature conditions resulted in increased mortality. Our results suggest public health officials must consider temperature effects when controlling mosquitoes with insecticides.https://www.mdpi.com/2076-0817/10/8/992<i>Aedes aegypti</i><i>Aedes albopictus</i>insecticide resistancemosquito control |
| spellingShingle | Wendy S. Salinas Teresa P. Feria-Arroyo Christopher J. Vitek Temperatures Influence Susceptibility to Insecticides in <i>Aedes aegypti</i> and <i>Aedes albopictus</i> (Diptera: Culicidae) Mosquitoes Pathogens <i>Aedes aegypti</i> <i>Aedes albopictus</i> insecticide resistance mosquito control |
| title | Temperatures Influence Susceptibility to Insecticides in <i>Aedes aegypti</i> and <i>Aedes albopictus</i> (Diptera: Culicidae) Mosquitoes |
| title_full | Temperatures Influence Susceptibility to Insecticides in <i>Aedes aegypti</i> and <i>Aedes albopictus</i> (Diptera: Culicidae) Mosquitoes |
| title_fullStr | Temperatures Influence Susceptibility to Insecticides in <i>Aedes aegypti</i> and <i>Aedes albopictus</i> (Diptera: Culicidae) Mosquitoes |
| title_full_unstemmed | Temperatures Influence Susceptibility to Insecticides in <i>Aedes aegypti</i> and <i>Aedes albopictus</i> (Diptera: Culicidae) Mosquitoes |
| title_short | Temperatures Influence Susceptibility to Insecticides in <i>Aedes aegypti</i> and <i>Aedes albopictus</i> (Diptera: Culicidae) Mosquitoes |
| title_sort | temperatures influence susceptibility to insecticides in i aedes aegypti i and i aedes albopictus i diptera culicidae mosquitoes |
| topic | <i>Aedes aegypti</i> <i>Aedes albopictus</i> insecticide resistance mosquito control |
| url | https://www.mdpi.com/2076-0817/10/8/992 |
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