Potential of some Nigerian plants as mosquito larvicides

  • O I Agboola
  • S A Adesanya
  • A A Gbolade
Keywords: <i>Pseudocedrela kotschyi, Harungana madagascariensis, Pycnanthus angolensis</i>, Larvicidal activity, <i>Aedes aegypti</i> mosquito


Crude ethanolic extracts of thirteen plants from Nigeria were screened for larvicidal activity against fourth instar Aedes aegypti mosquito. Only seven of these were active (LC50 ≤ 6.25ppm). Activity of the solvent partitioned-extracts derived from the more active plants was in the order: EtOAc < BuOH 2O (for Pseudocedrela kotschyi stem bark); and BuOH < EtOAc < H2O (for Pycnanthus angolensis stem bark). Only the EtOAc extract of Harungana madagascariensis was active. This study suggests a potential use of these plants in the control of vector mosquitoes of malaria.

Keywords: Pseudocedrela kotschyi, Harungana madagascariensis, Pycnanthus angolensis, Larvicidal activity, Aedes aegypti mosquito

Journal of Pharmacy and Bioresources Vol. 3 (1) 2006: pp. 46-48

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eISSN: 0189-8442