DOI: https://doi.org/10.36347/sajp.2026.v15i01.002

Pages: 16-24

The present investigation compares the in vitro phytochemical composition and biological activities of extracts from Dalbergia oliveri and Lagerstroemia speciosa. Qualitative phytochemical screening confirmed the presence of various secondary metabolites, including alkaloids, flavonoids, tannins, saponins, and terpenoids in both extracts. Larvicidal assays conducted on Aedes aegypti larvae showed a concentration-dependent increase in mortality for both plant extracts, with D. oliveri being notably more effective. Collectively, the results demonstrate that both plant species exhibit substantial phytochemical and bioactive potential, supporting their relevance in the development of natural environmentally sustainable mosquito control agents.