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zuo shu zhi wu sha mie ding luo de chu bu yan jiu
Author(s): 
Pages: 37-40
Year: Issue:  1
Journal: EUCALYPT SCIENCE & TECHNOLOGY

Keyword:  桉树植物杀螺剂钉螺;
Abstract: 目的研究桉树植物杀灭钉螺的效果.方法对桉树属中的异心叶桉和赤桉树叶的水提剂、乙醇提取物和桉油等提取物,采用室内浸杀法,观察其在恒温(25±1℃)下的杀螺效果及对钉螺卵毒性作用.结果:异心叶桉和赤桉树叶的水提剂浸泡钉螺72h后的LC50为分别为0.24%和0.18%;乙醇提取物浸泡钉螺72h后的LC50分别为12.1mg/l和16.5mg/l;两种桉油浸泡钉螺72h后的LC50分别为42.0mg/l和9.7mg/l.异心叶桉乙醇提取物在50.0mg/l时浸泡钉螺卵5d以上、25.0mg/l浸泡钉螺卵7d以上,可完全抑制钉螺卵的孵出.结论异心叶桉和赤桉两种桉树叶的水提剂、乙醇提取物和桉油对钉螺都具有较强的杀螺作用.提示这两种桉树可能是研究植物杀螺剂较有价值的候选植物.
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