摘要
目的 研究赤桉提取物杀灭钉螺的效果。方法 采用室内浸杀法 ,对赤桉树叶的水提剂、乙醇提取物和提取的桉油等的杀螺效果进行观察。结果 赤桉树叶的水提剂浸泡钉螺 48h和 72h后的 L C5 0 分别为 0 .5 4%和 0 .18% ;乙醇提取物浸泡钉螺 48h和 72 h后的 L C5 0 分别为 19.4m g/L和 15 .5 mg/L;赤桉油浸泡钉螺 48h和 72 h后的 L C5 0 分别为 15 .1mg/L 和 7.7mg/L。结论 从赤桉树叶中提取的水提剂、乙醇提取物和桉油对钉螺具有较强的杀灭作用。
Objective To understand the molluscicidal effects of extracts of Eucalyptus camaldulensis [WT5”BZ]on Oncomelania hupensis. Methods Observations were carried out on the molluscicidal effect of water extract, alcohol extract and essential oil of E. camaldulensis by using immersion method. Results The LC 50 of the water extract of E. camaldulensis leaves was 0 54% for 48 hours after snails exposed to the extract, and 0 18% for 72 hours after exposure, respectively. The LC 50 of the alcohol extract of [WT5”BX]E. camaldulensis leaves was 19 4 mg/L for 48 hours and 15 4 mg/L for 72 hours after snails exposed to the extract, respectively. The LC 50 of essential oil was 15 1 mg/L for 48 hours and 7 7 mg/L for 72 hours after exposure, respectively. Conclusion The water extract, alcohol extract, and oil of E. camaldulensis have the strong molluscicidal effect on O. hupensis, so E. camaldulensis may be as one of candidates of potential plant molluscicides.
出处
《中国血吸虫病防治杂志》
CAS
CSCD
2001年第1期18-20,共3页
Chinese Journal of Schistosomiasis Control
基金
江苏省科技厅重点储备基金项目的资助
关键词
赤桉
提取物
植物杀螺剂
灭钉螺
Eucalyptus camaldulensis, Plant molluscicide, Oncomelania hupensis
