Bioefficacy of Cassia fistula Linn. (Leguminosae) leaf extract against chikungunya vector, Aedes aegypti (Diptera: Culicidae)

Autor(es): Govindarajan M


Resumo: The leaf extract of Cassia fistula with different solvens viz, methanol, benzene - acetone were studied for the larvicidal, ovicidal - repellent activity against Aedes aegypti. The extract exhibited dose dependent activity - produced significant mortality. The 24 h LC50 concentration of the extract against Aedes aegypti were observed at 10.69, 18.27 - 23.95 mg/l respectively. Mean percent hatchability of the ovicidal activity was observed 120.00 h after treatment. The percent hatchability was inversely proportional to the concentration of extract - directly proportional to the eggs. The crude extract of Cassia fistula shows significant repellency against Aedes aegypti. These results clearly reveal that the crude extract of Cassia fistula served as a potential larvicidal, ovicidal - repellent agent against chikungunya vector mosquito,


Palavras-Chave: Cassia fistula; Aedes aegypti; Larvicidal activity; Ovicidal activity; Repellent activity


Imprenta: European Review for Medical and Pharmacological Sciences, v. 13, n. 2, p. 99-103, 2009


Descritores: Chikungunya virus - Cell ; Chikungunya Virus - Virus ; Chikungunya virus - Ovicida ; Chikungunya virus - Repellent ; Chikungunya virus - Public health


Data de publicação: 2009