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Artículo

Evolution of insecticide resistance in non-target black flies (Diptera: Simuliidae) from Argentina

Montagna, Mónica Cristina; Gauna, Lidia Ester; Pechen, Ana MariaIcon ; Anguiano, Olga Liliana
Fecha de publicación: 06/2012
Editorial: Ministério da Saúde. Instituto Oswaldo Cruz
Revista: Memórias do Instituto Oswaldo Cruz
ISSN: 0074-0276
e-ISSN: 1678-8060
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Bioquímica y Biología Molecular

Resumen

Black flies, a non-target species of the insecticides used in fruit production, represent a severe medical and veterinary problem. Large increases in the level of resistance to the pyrethroids fenvalerate (more than 355-fold) and deltamethrin (162-fold) and a small increase in resistance to the organophosphate azinphos methyl (2-fold) were observed between 1996-2008 in black fly larvae under insecticide pressure. Eventually, no change or a slight variation in insecticide resistance was followed by a subsequent increase in resistance. The evolution of pesticide resistance in a field population is a complex and stepwise process that is influenced by several factors, the most significant of which is the insecticide selection pressure, such as the dose and frequency of application. The variation in insecticide susceptibility within a black fly population in the productive area may be related to changes in fruit-pest control. The frequency of individuals with esterase activities higher than the maximum value determined in the susceptible population increased consistently over the sampling period. However, the insecticide resistance was not attributed to glutathione S-transferase activity. In conclusion, esterase activity in black flies from the productive area is one mechanism underlying the high levels of resistance to pyrethroids, which have been recently used infrequently. These enzymes may be reselected by currently used pesticides and enhance the resistance to these insecticides.
Palabras clave: Black Fly , Insecticide Resistance , Fenvalerate , Deltamethrin , Azinphos Methyl
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/9810
URL: http://memorias.ioc.fiocruz.br/issues/past-issues/item/1279-evolution-of-insecti
URL: https://doaj.org/article/1cc0a9b7a057462b8a3974da52b6bd0a
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762012000400003&l
DOI: http://dx.doi.org/10.1590/S0074-02762012000400003
Colecciones
Articulos(PROBIEN)
Articulos de INST. DE INVESTIGACION Y DES. EN ING. DE PROCESOS, BIOTECNOLOGIA Y ENERGIAS ALTERNATIVAS
Citación
Montagna, Mónica Cristina; Gauna, Lidia Ester; Pechen, Ana Maria; Anguiano, Olga Liliana; Evolution of insecticide resistance in non-target black flies (Diptera: Simuliidae) from Argentina; Ministério da Saúde. Instituto Oswaldo Cruz; Memórias do Instituto Oswaldo Cruz; 107; 4; 6-2012; 458-465
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