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15 February 2023 Insecticide Resistance Status of Aedes albopictus (Diptera: Culicidae) Populations from Cuba
Luis Augusto Piedra, Maria Magdalena Rodriguez, Isabel Lopez, Armando Ruiz, Liss Claudia Martinez, Israel Garcia, Jorge Rey, Juan Andres Bisset
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Abstract

Aedes albopictus (Skuse, 1894) is one of the major vectors for arboviruses such as dengue, Zika, and chikungunya. Originally from Southeast Asia, this species has spread to Africa, Europe, and the Americas, including Cuba. This spread has been favored by its great adaptability to variable temperatures and to the resistance of its eggs to desiccation. Chemical control of mosquitoes is an essential alternative to stop arbovirus transmission, but insecticide resistance status of the Cuban Ae. albopictus populations is unknown. For this study, Ae. albopictus larvae and adults were collected from two municipalities in Havana, Cuba in 2019. Adult bioassays for deltamethrin, cypermethrin, lambda-cyhalothrin, chlorpyrifos, propoxur, and bendiocarb susceptibility were conducted according to CDC methodology. Larval bioassays for temephos susceptibility were performed following WHO protocols. Resistance profiles for α and β-esterases, glutathione S-transferase (GST), and multifunction oxidases (MFO) pathways were constructed and analyzed. Resistance to temephos and deltamethrin was detected in Mulgoba and Plaza field populations, but resistance to lambda-cyhalothrin was only found in the Plaza colony. Plaza colony exhibited a higher expression level to all four metabolic enzymes and α-esterases and GTS were over-expressed in Mulgoba. The development of insecticide resistance in Cuban Ae. albopictus populations makes it imperative that we develop integrated control strategies to minimize the development of resistance and provide effective vector control that prevents the onset of arbovirus epidemics.

Luis Augusto Piedra, Maria Magdalena Rodriguez, Isabel Lopez, Armando Ruiz, Liss Claudia Martinez, Israel Garcia, Jorge Rey, and Juan Andres Bisset "Insecticide Resistance Status of Aedes albopictus (Diptera: Culicidae) Populations from Cuba," Journal of Medical Entomology 60(3), 487-493, (15 February 2023). https://doi.org/10.1093/jme/tjac189
Received: 22 September 2022; Accepted: 29 November 2022; Published: 15 February 2023
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KEYWORDS
Aedes albopictus
insecticide
mosquito
resistance
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