Insecticidal activity of major lichen compounds, (−)- and (+)-usnic acid, against the larvae of house mosquito, Culex pipiens L.

  title={Insecticidal activity of major lichen compounds, (−)- and (+)-usnic acid, against the larvae of house mosquito, Culex pipiens L.},
  author={Huseyin Cetin and Ozge Tufan-Cetin and Ayse Ozdemir Turk and Turgay Tay and Mehmet Candan and Atila Yanikoğlu and Huseyin Sumbul},
  journal={Parasitology Research},
In this research, (−)-usnic acid and (+)-usnic acid, commonly encountered lichen secondary metabolites, were evaluated for their insecticidal effects against the larvae of Culex pipiens L. (Diptera: Culicidae) under laboratory conditions. Both compounds showed strong larvicidal activity and caused 100% mortality on third–fourth larval stages of the species at 24 h at the doses of 5 and 10 ppm. Bioassays with (−)- and (+)-usnic acids against larvae of C. pipiens revealed that the LC50 values… CONTINUE READING
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