Insecticidal activity of major lichen compounds, (-)- and (+)-usnic acid, against the larvae of house mosquito, Culex pipiens L.
Parasitol Res
; 102(6): 1277-9, 2008 May.
Article
em En
| MEDLINE
| ID: mdl-18273644
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.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Benzofuranos
/
Culex
/
Inseticidas
/
Líquens
Limite:
Animals
Idioma:
En
Revista:
Parasitol Res
Assunto da revista:
PARASITOLOGIA
Ano de publicação:
2008
Tipo de documento:
Article
País de afiliação:
Turquia