Insecticide resistance to organophosphates in Culex pipiens complex from Lebanon
نویسندگان
چکیده
منابع مشابه
Energetic cost of insecticide resistance in Culex pipiens mosquitoes.
The extensive use of insecticides to control vector populations has lead to the widespread development of different mechanisms of insecticide resistance. Mutations that confer insecticide resistance are often associated to fitness costs that prevent them from spreading to fixation. In vectors, such fitness costs include reductions in preimaginal survival, adult size, longevity, and fecundity. T...
متن کاملPopulation genetics of insecticide resistance in the mosquito Culex pipiens
Thirty years of control of the mosquito Culex pipiens using organophosphate insecticides (OP) has selected for OP-resistance alleles on a world-wide scale. As reviewed here, studies at the levels of gene and population allow identification of the main forces driving this process of adaptation. Three loci are involved in OP-resistance in C. pipiens. For two of these, adaptive mutations were foun...
متن کاملThe impact of insecticide resistance on Culex pipiens immunity
Because of their role as vectors of diseases, the evolution of insecticide resistance in mosquitoes has been intensively investigated. Insecticide resistance is associated to a wide range of pleiotropic effects on several key life-history traits of mosquitoes such as longevity and behavior. However, despite its potential implications in pathogen transmission, the effects of insecticide resistan...
متن کاملResistance to temephos, an organophosphorous insecticide, in Culex pipiens from Tunisia, North Africa.
Resistance to temephos, an organophosphorous insecticide (OP), was found to be low (2-fold) in 2 Culex pipiens populations collected in Sayada (mid-eastern Tunisia). This resistance was synergized by an esterase inhibitor (DEF). Two sets of over-produced esterases (A2-B2 and A4-B4), known to be involved in resistance, were identified in almost 50% of the examined insects. In addition, 3% of ins...
متن کاملMechanisms of insecticide resistance in field populations of Culex pipiens from Italy.
Results of a study on organophosphate (OP) resistance carried out on 4 Italian field populations of Culex pipiens are reported. The A1, A4-B4 and/or A5-B5 nonspecific esterases and insensitive acetylcholinesterase (AChE) were detected in our samples. A2-B2 esterases previously recorded in Italy were not observed. The A4-B4 and/or A5-B5 esterases were first found in Italy where they are at prese...
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ژورنال
عنوان ژورنال: Parasites & Vectors
سال: 2012
ISSN: 1756-3305
DOI: 10.1186/1756-3305-5-132