Anopheles darlingi and Anopheles marajoara (Diptera: Culicidae) susceptibility to pyrethroids in an endemic area of the Brazilian Amazon

• Main Authors: Allan Kardec Ribeiro Galardo, Marinete Marins Póvoa, Izis Monica Carvalho Sucupira, Clícia Denis Galardo, Roseli La Corte dos Santos
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Medicina Tropical (SBMT) 2015-12-01
• Series: Revista da Sociedade Brasileira de Medicina Tropical
• Subjects: Insecticide resistance; Pyrethroids; Vector control.
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822015000600765&lng=en&tlng=en
• ISSN: 1678-9849

Abstract: INTRODUCTION: This study aimed to evaluate the susceptibility of Anopheles darlingi Root (1926) and Anopheles marajoara Galvão & Damasceno (1942) to pyrethroids used by the National Malaria Control Program in Brazil. METHODS: Mosquitoes from Amapá, Brazilian Amazon, were assessed for resistance to cypermethrin, deltamethrin, and alpha-cypermethrin. Insecticide-impregnated bottles were used as suggested by the CDC/Atlanta. RESULTS: Diagnostic dose for Anopheles darlingi was 12.5µg/bottle during 30 min of exposure. Concentrations for Anopheles marajoara were 20µg/bottle of cypermethrin and deltamethrin and 12.5µg/bottle of alpha-cypermethrin. CONCLUSIONS : No resistance was recorded for Anopheles darlingi , but Anopheles marajoara requires attention.