A horizontally polarizing liquid trap enhances the tabanid-capturing efficiency of the classic canopy trap

A. Egri, M. Blahó, D. Száz, G. Kriska, J. Majer, T. Herczeg, M. Gyurkovszky, R. Farkas, G. Horváth

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Host-seeking female tabanid flies, that need mammalian blood for the development of their eggs, can be captured by the classic canopy trap with an elevated shiny black sphere as a luring visual target. The design of more efficient tabanid traps is important for stock-breeders to control tabanids, since these blood-sucking insects can cause severe problems for livestock, especially for horse- and cattle-keepers: reduced meat/milk production in cattle farms, horses cannot be ridden, decreased quality of hides due to biting scars. We show here that male and female tabanids can be caught by a novel, weather-proof liquid-filled black tray laid on the ground, because the strongly and horizontally polarized light reflected from the black liquid surface attracts water-seeking polarotactic tabanids. We performed field experiments to reveal the ideal elevation of the liquid trap and to compare the tabanid-capturing efficiency of three different traps: (1) the classic canopy trap, (2) the new polarization liquid trap, and (3) the combination of the two traps. In field tests, we showed that the combined trap captures 2.4-8.2 times more tabanids than the canopy trap alone. The reason for the larger efficiency of the combined trap is that it captures simultaneously the host-seeking female and the water-seeking male and female tabanids. We suggest supplementing the traditional canopy trap with the new liquid trap in order to enhance the tabanid-capturing efficiency.

Original languageEnglish
Pages (from-to)665-674
Number of pages10
JournalBulletin of Entomological Research
Volume103
Issue number6
DOIs
Publication statusPublished - Dec 2013

Fingerprint

traps
canopy
liquids
Tabanidae
host seeking
hematophagous insects
horses
polarized light
cattle
trays
milk production
surface water
weather
livestock
meat
farms
blood

Keywords

  • canopy trap
  • horsefly
  • light polarization
  • liquid trap
  • polarotaxis
  • tabanid fly

ASJC Scopus subject areas

  • Insect Science
  • Agronomy and Crop Science

Cite this

A horizontally polarizing liquid trap enhances the tabanid-capturing efficiency of the classic canopy trap. / Egri, A.; Blahó, M.; Száz, D.; Kriska, G.; Majer, J.; Herczeg, T.; Gyurkovszky, M.; Farkas, R.; Horváth, G.

In: Bulletin of Entomological Research, Vol. 103, No. 6, 12.2013, p. 665-674.

Research output: Contribution to journalArticle

Egri, A. ; Blahó, M. ; Száz, D. ; Kriska, G. ; Majer, J. ; Herczeg, T. ; Gyurkovszky, M. ; Farkas, R. ; Horváth, G. / A horizontally polarizing liquid trap enhances the tabanid-capturing efficiency of the classic canopy trap. In: Bulletin of Entomological Research. 2013 ; Vol. 103, No. 6. pp. 665-674.
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