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Temephos resistance and esterase activity in the mosquito Aedes aegypti in Havana, Cuba increased dramatically between 2006 and 2008

Bisset, J. A., Rodríquez, M. M., Ricardo, Y., Ranson, Hilary ORCID: https://orcid.org/0000-0003-2332-8247, Pérez, O., Moya, M. and Vázquez, A. (2011) 'Temephos resistance and esterase activity in the mosquito Aedes aegypti in Havana, Cuba increased dramatically between 2006 and 2008'. Medical and Veterinary Entomology, Vol 25, Issue 3, pp. 233-239.

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Abstract

Aedes aegypti (L.) (Diptera: Culicidae) control programmes in Cuba rely on the application of the organophosphate temephos for larval control. Hence,the monitoring of resistance to this insecticide is an essential component of such programmes. Here, 15 field populations from different municipalities of Havana City were assayed for resistance to temephos. High levels of resistance were detected
in all strains and resistance ratios were highly correlated with esterase activity (P = 0.00001). Populations from three municipalities were tested in both 2006 and 2008; resistance and esterase activities both significantly increased during this 2-year period. Synergist studies demonstrated that neither glutathione transferases
nor monooxygenases were associated with the increase in resistance to temephos in this period. The duration of the efficacy of commercial formulations of temephos in controlling Ae. aegypti populations in Havana City was reduced by the high level of temephos resistance observed; hence these data are of clear operational significance
for the dengue control programme in Cuba. New integrated strategies to avoid further increases in temephos resistance in Cuba are necessary.

Item Type: Article
Uncontrolled Keywords: Aedes aegypti;esterase;resistance mechanisms;temephos resistance
Subjects: QX Parasitology > Insects. Other Parasites > QX 525 Aedes
QX Parasitology > Insects. Other Parasites > QX 600 Insect control. Tick control
WC Communicable Diseases > Virus Diseases > Infectious Mononucleosis. Arbovirus Infections > WC 528 Dengue
Faculty: Department: Groups (2002 - 2012) > Vector Group
Digital Object Identifer (DOI): https://doi.org/10.1111/j.1365-2915.2011.00959.x
Depositing User: Users 183 not found.
Date Deposited: 26 Oct 2011 15:18
Last Modified: 30 Aug 2019 17:05
URI: https://archive.lstmed.ac.uk/id/eprint/2359

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