Evaluation of the efficacy of aqueous and ethanolic extracts of Eucalyptus camaldolinsis as a molluscicide compared to metaldehyde against Monacha obstructa

This study was conducted on the effect of a boiled The aim of the current study is to evaluate the molluscicide activity of the aqueous and ethanolic extracts of Eucalyptus camaldulensis leaves against the ground snail Monacha obstructa at three concentrations (20, 25 and 30 mg/L) under laboratory conditions, for the purpose of comparison with metaldehyde as a primary molluscicide. Adult snails were randomly divided into four groups (ten snails per group), each receiving three doses of the extract, along with a control group. Mortality was recorded weekly for up to three weeks. We used one-way ANOVA and the LSD test at a significance level of P ≤ 0.05 for statistical analysis. The study showed that The ethanolic extract exhibited significantly higher molluscicide effects than the aqueous extract at all tested concentrations (P ≤ 0.05). The highest mortality rate was recorded at a concentration of 30 mg/L after three weeks of exposure. The ethanolic extract of Eucalyptus camaldolenesis showed significant effectiveness against slugs and molluscs; however, the pesticide metaldehyde was more effective. Further studies are needed to determine the feasibility of applying the current findings in the field.