Intense Pyrethroid Use in Adult Mosquito Control: Possible Effects on Resistance Development and Environment

İzzetoğlu S. , Güntay O., Yıkılmaz M. S.

5th ECOLOGY AND EVOLUTIONARY BIOLOGY SYMPOSIUM, İzmir, Türkiye, 18 - 20 Temmuz 2018, ss.53-54

  • Basıldığı Şehir: İzmir
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.53-54


Mosquitoes are considered one of the most important species in public health control programs due to it
being a nuisance among other health-related problems. Pyrethroids are widely used for both adult mosquito
controls and agricultural pest management in Izmir, Turkey as part of integrated pest management. However,
long-term and frequent use of insecticides against adult mosquitoes causes increased numbers of resistant
individuals and populations. In this study, we collected Culex pipiens, the most common mosquito species in
Turkey, from three locations and examined status of susceptibility to four different pyrethroids (deltamethrin,
permethrin, α-cypermethrin and cyfluthrin). To achieve this, adult susceptibility bioassays were performed using
with WHO insecticide-impregnated papers (0,05% deltamethrin, 0,75% permethrin, 0,05% α-cypermethrin,
0,15% cyfluthrin). From each site, 150 females mosquitoes aged 3-5 days old were used and all treatments were
replicated three times. No susceptibility was observed in any of three populations (mortalities <63%) to four
pyrethroids. The results confirm that adult mosquitoes develop resistance against pyrethroids. Primary reason for
this resistance is that mosquito control programmes have been done often with adults besides larvae for many
years. The success rate of the adult control is low and this leads to the selection of the resistant individuals in the

population. Most importantly, these pyrethroids cause serious environmental problems such as contamination of
soil and water sources.