This study explores the pesticidal efficacy of methanolic extracts from Eucalyptus camaldulensis leaves and Eugenia caryophyllata dry fruit buds against the rice weevil, Sitophilus oryzae. The extracts were prepared by soaking dried, powdered plant parts in methanol, followed by filtration and evaporation. Various concentrations of the extracts were tested in fumigant bioassays, with mortality rates recorded over four days. E. camaldulensis extracts demonstrated a dose-dependent effect, achieving an 87.11% mortality rate at 500 ppm. The LC50 value for E. camaldulensis was calculated to be 225.04 ppm, with a regression equation of y = 0.1565x + 14.781 and an R² value of 0.902, indicating a strong correlation between concentration and mortality.