SciELO - Scientific Electronic Library Online

 
vol.37 suppl.2Identifying Trypanosoma cruzi discreet typing units in triatomines collected in different natural regions of PerúEstimation of time detection limit for human cytochrome b in females of Lutzomyia evansi author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Biomédica

Print version ISSN 0120-4157

Abstract

GARCIA, Diana et al. Effect of the type and number of washes in the efficacy of long lasting insecticidal nets for Aedes aegypti control in Girardot, Colombia. Biomédica [online]. 2017, vol.37, suppl.2, pp.180-186. ISSN 0120-4157.  http://dx.doi.org/10.7705/biomedica.v34i2.3472.

Introduction:

The use of long lasting insecticidal materials has shown promising results in the control of Aedes aegypti.

Objective:

To evaluate the efficacy of long-lasting insecticidal nets (PermaNet®) for Aedes aegypti control after three washing treatments in the city of Girardot, Colombia.

Materials and methods:

Standard bioassays were conducted with the nets following the World Health Organization protocols using wild A. aegypti after three washing treatments: (1) Detergent powder, (2)detergent powder and bleach, and (3) bar soap, until completing 20 washes.

Results:

The type and number of wash treatments had a significant effect on net efficacy. Greater effects in the insecticide bioavailability were seen for the bar soap treatment. After six washes, mortality decreased by 50% (25/50), vs 66% (33/50) for the detergent powder and 84% (42/50) for the detergent powder and bleach treatments. Regarding the number of washes, the bar soap treatment reduced the efficacy to 68% after only three washes.

Conclusion:

The effectiveness of long-lasting insecticidal nets (PermaNet 2.0) for A. aegypti control varied in relation to the treatment and number of washes. The bar soap treatment resulted in the greatest reduction of mortality. Further studies on insecticidal reductions are needed under local conditions.

Keywords : Aedes aegypti; insecticides; bioassay; World Health Organization.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )