Larvicidal activity of the fruit mesocarp extract of Balanites aegyptiaca and its saponin fractions against Aedes aegypti

Bishnu P. Chapagain, Zeev Wiesman

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The present study indicates the efficacy of the saponins fraction of the fruit mesocarp extract of Balanites aegyptiaca Del. (Zygophyllace) as a larvicidal agent against the common dengue vector - Aedes aegypti mosquito. A series of concentrations of fruit mesocarp extract of B. aegyptiaca fruit, its crude saponin extract and pure saponin fraction were tested against the laboratory-reared third instars larvae and compared with their LC50 values. The pure saponin fraction was found most active larvicidal, followed by crude saponin extract and mesocarp extract. The LC50 values of pure saponin extract, crude saponin extract and mesocarp extract were 145, 315 and 935 ppm respectively. In separate experiments, concentrations of 35 ppm, 260 ppm and 850 ppm of pure saponin fraction, crude saponin extract and mesocarp extract respectively were found to inhibit the emergence of 50% of the tested larvae population (EC50). The pure saponin fraction also interfered with adult emergence.

Original languageEnglish
Pages (from-to)203-207
Number of pages5
JournalDengue Bulletin
Volume29
StatePublished - 1 Dec 2005

Keywords

  • Adult emergence
  • Aedes aegypti
  • Balanites aegyptiaca
  • Dengue
  • Larvicidal
  • Saponins

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