International Journal of Botany Studies

International Journal of Botany Studies


International Journal of Botany Studies
International Journal of Botany Studies
Vol. 7, Issue 8 (2022)

Comparative study on larvicidal activity of the stem and root of Andrographis paniculata (Burm.f.) against the larvae Aedes aegypti (Linn.)


J V Jincy, S Thampiraj

Mosquitoes transmit serious problems now a days, causing millions of deaths every year with serious diseases and the development of resistance to chemical insecticides. Plants may be alternative sources of mosquito control agents other than chemical compounds. The present study assessed the larvicidal activity of stem and root of Andrographis paniculata (Burm.f.). Bioactive compounds of the stem and root of Andrographis paniculata were extracted using ethanol, acetone, isopropyl alcohol, benzene, n-butyl alcohol. Larvicidal activity conducted by serial dilution methods in different concentrations such as 25, 50, 100, 200, 400 ppm. LC50 value and LC90 value were calculated by probit analysis. The larval mortality was calculated after 12 h and 24h of the exposure period. All plant extracts showed significant larvicidal activity against A. aegypti mosquito larvae. Among the extract tested, the n-butyl alcohol extract recorded the highest activity in both root and stem than other extracts. In stem highest mortality revealed n-butyl alcohol extract, the LC50 and LC90 values 399.95 and 770.83 after 12h and 262.73 and 555.57 after 24h. In root highest mortality rate showed with n-butyl alcohol extract, the LC50 and LC90 values are 444.25 and 652.30 after 12h of exposure period and LC50 and LC90 values are 253.08 and 532.22 after 24h of exposure period. Present study reveals that the extracts of Andrographis paniculataas biocidal agent against mosquito larvae, Aedes egyptii. Our data suggest that the stem and root of n-butyl alcohol extract of Andrographis paniculata have the bio potential activity and have the capacity to control of the Aedes aegypti mosquito larvae.
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How to cite this article:
J V Jincy, S Thampiraj. Comparative study on larvicidal activity of the stem and root of Andrographis paniculata (Burm.f.) against the larvae Aedes aegypti (Linn.). International Journal of Botany Studies, Volume 7, Issue 8, 2022, Pages 39-43
International Journal of Botany Studies