Efficacy of spinosad granules and lambda-cyhalothrin contrasts with reduced performance of temephos for control of aedes spp. In vehicle tires in veracruz, Mexico
Por:
Williams, Trevor, Farfan, Juan L., Mercado, Gabriel, Valle, Javier, Abella, Antonio, Marina, Carlos F.
Publicada:
1 ene 2019
Categoría:
Insect science
Resumen:
The present study examined the efficacy of ?-cyhalothrin, pyriproxyfen and granular formulations of spinosad and temephos for the control of mosquito larvae present in experimental tires in Veracruz State, Mexico in the period 2015–2016. Both ?-cyhalothrin and spinosad granules provided control of larvae and pupae of Aedes aegypti, Ae. albopictus and Culex spp. in used tires in Veracruz State, Mexico, over a 9–12 week period, although numbers of Culex were low. The numbers of Aedes larvae + pupae in pyriproxyfen and temephos-treated tires were slightly less than half of the untreated control tires, probably a result the pupicidal characteristics of pyriproxyfen and possible resistance in the case of temephos. Spinosad was less harmful to predatory Toxorhynchites spp. than ?-cyhalothrin or temephos. The reduced susceptibility to temephos in Aedes populations was confirmed at five other sites in Veracruz. Public health authorities should consider incorporating spinosad as a larvicide in coastal areas at a high risk of dengue, chikungunya and Zika outbreaks in this region. © 2019 by the authors. Licensee MDPI, Basel, Switzerland.
Filiaciones:
Instituto de Ecología AC (INECOL), Xalapa, Veracruz 91073, Mexico
El Colegio de la Frontera Sur (ECOSUR), Tapachula, Chiapas 30700, Mexico
Departamento de Etología, Fauna Silvestre y Animales de Laboratorio—FMVZ, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico
Centro Regional de Investigación en Salud Pública—INSP, Tapachula, Chiapas 30700, Mexico
Inst Ecol AC INECOL, Xalapa 91073, Veracruz, Mexico
El Colegio Frontera Sur ECOSUR, Tapachula 30700, Chiapas, Mexico
Univ Nacl Autonoma Mexico, Dept Etol, Fauna Silvestre & Anim Lab FMVZ, Mexico City 04510, DF, Mexico
Ctr Reg Invest Salud Publ INSP, Tapachula 30700, Chiapas, Mexico
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