Parasitology Research (2008) 102, 1277-1279

Huseyin Cetin, Ozge Tufan-Cetin, Ayse Ozdemir Turk, Turgay Tay, Mehmet Candan, Atila Yanikoglu and Huseyin Sumbul (2008)
Insecticidal activity of major lichen compounds, (−)- and (+)-usnic acid, against the larvae of house mosquito, Culex pipiens L.
Parasitology Research 102 (6), 1277-1279
Abstract: 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 were 0.8 and 0.9 ppm, respectively. The results suggest that lichen compounds could be useful in the search of new insecticides.
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Link to article at publishers website
Database assignments for author(s): Huseyin Cetin

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Culex pipiens