Autor(es): Ali, Mohamed Yacoob Syed; Anuradha, Venkatraman; Sirajudeen, SyedAbudhair; Vijaya, Prathasarathy; Yogananth, Nagarajan; Rajan, Ramachandran; Parveen, Peer Mohamed Kalitha

Resumo: To identify the larvicidal activity of the volatile oil from Sesuvium portulacastrum (S. portulacastrum) against Anopheles stephensi and Aedes aegypti. Volatile oil extract of S. portulacastrum was prepared in a graded series of concentration. The test for the larvicidal effect of volatile oil against mosquitos larvae of conducted in accordance with the WHO standard method. Batches of 25 early 4th instar larvae of two mosquitoes were transferred to 250 mL enamel containing 199 mL distilled water and 1 mL of plant extracts. Each experiment was conducted with triplicate with concurrent a control group. Volatile oil extracts of S. portulacastrum showed toxicity against 4th instar larvae of Aedes aegypti and Anopheles stephensi with equivalent LC50 [(63 +/- 7.8) mu L/mL, LCL-UCL=55.2-64.0] and LC50 value [(94.2 +/- 3.9) mu L/mL in maximum activity with minimum concentration (200 mu L/mL) of volatile oil and followed by maximum activity of 250 mu L concentration showed LC50 value=(68.0 +/- 8.2) mu L/mL, LCL-UCL=66.26-69.2 and LC50 value of (55.2 +/- 2.8) mu L/mL, LCL-UCL=53.7-56.9, LC50=(95.2 +/- 1.25) mu/lmL and followed by 250 mu L of oil extract against 4th instar larvae of Aedes aegypti respectively. It is inferred from the present study that, the extracts from sail marsh mangrove plan of S. portulacastum are identified as a potential source of safe and efficacious mosquito control agents for the mqanagement of vector borne diseases of malaria and dengue.

Palavras-Chave: Aedes aegypti; Anopheles stephensi; Larvicidal; Oleic acid; Sesuvium portulacastrum

Imprenta: Journal of Coastal Life Medicine, v. 1, n. 1, p. 65-70, 2013

Descritores: Aedes aegypti - Larvicide ; Aedes aegypti - Public health

Data de publicação: 2013