Susceptibility Status to Temephos in Larval Aedes aegypti and Aedes albopictus (Diptera: Culicidae) Populations from Quintana Roo, Southeastern Mexico
2022
Ciau-Mendoza, José Antonio | Gómez-Rivera, Ángel S. | Canto-Mis, Karla Leticia | Chan-Chable, Rahuel J. | González-Acosta, Cassandra | Moreno-García, Miguel | Correa-Morales, Fabián | Mis-Avila, Pedro Christian
In Mexico, the larvicide temephos (an organophosphate) has been used widely for vector control for a number of yr. Repeated exposure to this larvicide has caused resistance in Aedes container-inhabiting larvae. In this study, the susceptibility status to temephos was evaluated in Ae. albopictus and Ae. aegypti larvae from 4 locales within Quintana Roo, Mexico. Aedes aegypti exhibited low-intensity phenotypic resistance in Cancún, Playa del Carmen, José María Morelos, and Chetumal. Aedes albopictus was found to be susceptible to temephos in Chetumal and Playa del Carmen, but low-intensity phenotypic resistance (tolerance) was observed in Cancún and José María Morelos. The changes in susceptibility status to temephos in both species could be caused by different degrees of exposure to this larvicide. However, more in-depth studies are required to confirm this.
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