Details

Autor(en) / Beteiligte

• Maheswaran, Rajan
• Ignacimuthu, Savarimuthu

Titel

Effect of confertifolin from Polygonum hydropiper L. against dengue vector mosquitoes Aedes aegypti L

Ist Teil von

• Environmental science and pollution research international, 2015-06, Vol.22 (11), p.8280-8287

Ort / Verlag

Berlin/Heidelberg: Springer-Verlag

Erscheinungsjahr

2015

Quelle

MEDLINE

Beschreibungen/Notizen

• The essential oil from the leaves of Polygonum hydropiper L. (Polygonaceae) was tested against Aedes aegypti L. The LC₅₀values were 190.72 and 234.37 ppm against second and fourth instar larvae of A. aegypti, respectively. Confertifolin (6,6,9a-trimethy l-4,5,5a,6,7,8,9,9a-octahydronaphtho [1,2-c] furan-3 (1H)-one) was isolated from the essential oil of P. hydropiper leaves using silica gel column chromatography. The LC₅₀values were 2.90 and 2.96 ppm for second and fourth instar larvae of A. aegypti, respectively. At 10 ppm, the concentration of confertifolin showed ovicidal activity of 100, 100, and 77.6 % on 0–6, 6–12, and 12–18 h old eggs; the repellent activity was 323.2 min; and oviposition deterrent activity was 97.52 % and adulticidal activity was 100 % against A. aegypti. The results were statistically significant at P < 0.05 level. The results suggested that confertifolin as an effective major constituent against A. aegypti and might be considered as a potent source for the production of superior natural mosquitocides.