Vol. 11, Issue 6, Part A (2024)

Author(s): Jagriti Banerjee and Goutam Chandra

Abstract: Mosquitoes are infamous creatures that spread numerous fatal diseases. Amongst several species, Aedes albopictus is one of the most dangerous ones, as it spreads dengue, yellow fever, and zika to name a few life-threatening diseases. Conventional control methods not only fail to control this pest but also are hazardous to the environment. Green mosquitocide is the next-generation mosquito control strategy. This study aims to analyze the larvicidal activity of methanol extract of Coriandrum sativum root against Ae. albopictus. This study also aims to identify plausible functional groups and secondary metabolites responsible for the toxicity through FT-IR and phytochemical analysis respectively. The effect on non-target organisms was evaluated to nullify the chances of eco hazards. Cent percent mortality was observed after 72 hours of treatment in all larval instars larvae at 200 ppm of concentration, while insignificant mortality was observed at LC₅₀ and LC₉₀ concentrations of the same when non-target organisms were exposed. After 72 hours of exposure, the third instar larva showed the lowest LC₅₀ and LC₉₀ values, which are 51.11 ppm and 109.90 ppm, respectively. Based on a three-way factorial ANOVA analysis, we have concluded that several characteristics, including time intervals, concentration, and instars, have a significant effect on larval mortality. This finding is statistically significant. Through phytochemical investigation, alkaloids, flavonoids, terpenoids, and coumarin were detected. FTIR examination revealed the presence of carboxylic acids, amides, alkanes, aldehydes, and organic alcohol.

DOI: 10.22271/23487941.2024.v11.i6a.819