Affiliation:
1. Universidad Autonoma de Nuevo Leon, Facultad de Ciencias Biologicas, Avenida Universidad s/n Ciudad Universitaria, San Nicolas de los Garza, NL 66455, Mexico
2. Universidad Autonoma de Yucatan, UCBE-UADY, Merida, Yucatan, Mexico
3. Entomology Branch, Division of Parasitic Disease and Malaria, Centers for Disease Control and Prevention, Atlanta, GA, USA
Abstract
AbstractIn Mexico, Aedes aegypti (L.) is the primary dengue vector, chikungunya, and Zika viruses. The continued use of synthetic pyrethroids has led to the development of resistance in target populations, which has diminished the effectiveness of vector control programs. Resistance has been associated with disadvantages that affect the biological parameters of resistant mosquitoes compared to susceptible ones. In the present study, the disadvantages were evaluated by parameters related to survival and reproduction (‘fitness cost’) after selection with deltamethrin for five generations. The parameters analyzed were the length of the development cycle, sex ratio, survival, longevity, fecundity, egg viability, preoviposition, oviposition and postoviposition periods, and growth parameters. In the deltamethrin-selected strain, there was a decrease in the development cycle duration, the percentage of pupae, the oviposition period, and eggs viability. Although mean daily fecundity was not affected after the selection process, this, together with the decrease in the survival and fecundity levels by specific age, significantly affected the gross reproductive rate (GRR), net reproductive rate (Ro), and intrinsic growth rate (rm) of the group selected for five generations with deltamethrin compared to the group without selection. Identifying the ‘cost’ of resistance in biological fitness represents an advantage if it is desired to limit the spread of resistant populations since the fitness cost is the less likely that resistant individuals will spread in the population. This represents an important factor to consider in designing integrated vector management programs.
Funder
Universidad Autonoma de Nuevo Leon
Publisher
Oxford University Press (OUP)
Subject
Infectious Diseases,Insect Science,General Veterinary,Parasitology
Reference54 articles.
1. A method of computing the effectiveness of an insecticide.;Abbott;J Econ. Entomol,1925
2. Assessing the effect of selection with deltamethrin on biological parameters and detoxifying enzymes in Aedes aegypti (L.).;Alvarez-Gonzalez;Pest Manag. Sci,2017
3. Food as a limiting factor for Aedes aegypti in water-storage containers.;Arrivillaga;J. Vector Ecol,2004
4. Food material and feeding procedures for mosquito larvae.;Asahina;Bull. World Health Organ,1964
5. Fitness evaluation of two Brazilian Aedes aegypti field populations with distinct levels of resistance to the organophosphate temephos.;Belinato;Mem. Inst. Oswaldo Cruz,2012
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