Chemical composition and larvicidal activity of leaf essential oil from Clausena dentata (Willd) M. Roam. (Rutaceae) against the chikungunya vector, Aedes aegypti Linn. (Diptera: Culicidae)
Autor(es): Rajkumar, Sankaran; Jebanesan, Arulsamy
Resumo: Larvicidal activity of essential oil and isolated compounds from Clausena dentata leaves were tested against early fourth instar Aedes aegypti larvae. GC-MS analysis of essential oil revealed the presence of fourteen compounds of which the major compounds were sabinene (21.27%), biofloratriene (19.61%), borneol (18.34%) and b-bisabolol (17.68%). The essential oil of C. dentata exhibited significant larvicidal activity, with 24 h LC sub(50) and LC sub(90) values of 140.2 and 341.6 mg/l, respectively. Larvicidal activities of the four major compounds of essential oil were also tested. The LC sub(50) values of sabinene, biofloratriene, borneol and b-bisabolol were 27.3, 47.4, 43.5 and 33.2 mg/l, respectively. Results of this study show that the leaf essential oil of C. dentata and its four major compounds may be a potent source of natural larvicides.
Palavras-Chave: Aedes aegypti; Clausena dentata; Essential oil; GC?MS analysis; Larvicide
Imprenta: Journal of Asia-Pacific Entomology, v. 13, n. 2, p. 107-109, 2010.
Descritores: Aedes aegypti - Larvicide
Data de publicação: 2010
