Chemical constituents and larvicidal property of the essential oil of Blumea mollis (D. Don) Merr. against Culex quinquefasciatus.
The essential oil from the leaves of Blumea mollis was extracted and the chemical constituents and the larvicidal against Culex quinquefasciatus effects studied. The analyses of gas chromatography (GC) and GC-mass spectroscopy (GC-MS) revealed that the leaf essential oil of B. mollis contained 39 compounds, and the major chemical compounds identified were linalool (19.43%), gamma-elemene (12.19%), copaene (10.93%), estragole (10.81%), Allo-ocimene (10.03%), gamma-terpinene (8.28%) and Allo-aromadendrene (7.44%). The essential oil had significant toxic effect against early fourth-instar larvae of C. quinquefasciatus with LC50=71.71 and LC90=143.41 ppm. The results could be useful in search of newer, safer and more effective natural larvicidal agent against C. quinquefasciatus.
Department of Botany, Annamalai University, Annamalainagar, 608 002 Tamil Nadu, India.
Annadurai
A
Senthilkumar
Krishnan
K
Kannathasan
Venugopalan
V
Venkatesalu
D000818:Animals; D019659:Asteraceae / Q000737:chemistry*; D003465:Culex / Q000187:drug effects*; D008401:Gas Chromatography-Mass Spectrometry; D020128:Inhibitory Concentration 50; D007306:Insecticides / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D007814:Larva / Q000187:drug effects*; D009822:Oils, Volatile / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D018515:Plant Leaves / Q000737:chemistry
D007306:Insecticides; D009822:Oils, Volatile; D010936:Plant Extracts