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

Alanizy, Maedah Ayyed; Ghulam, Israa Naser

doi:10.66723/zjhms.2026.191339

	Evaluation of the efficacy of aqueous and ethanolic extracts of Eucalyptus camaldolinsis as a molluscicide compared to metaldehyde against Monacha obstructa
Al-Zahraa Journal for Health and Medical Sciences
Volume 4, Issue 1, March 2026, Pages 286-298 PDF (546.67 K)
Document Type: Research Article
DOI: 10.66723/zjhms.2026.191339
Authors
Maedah Ayyed Alanizy^* ¹; Israa Naser Ghulam²
¹Department of biology, College of Sciences, University of Kerbala
²Department of biology, College of Education for Pure Sciences, University of Kerbala
Abstract
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.
Keywords
Eucalyptus camaldulensis; Monacha obstructa; metaldehyde; alcoholic plant extract; boiled aqueous extract

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