没药对亚历山大双脐螺、截形小泡螺和卡氏椎实螺杀螺活性的实验室评估

Laboratory assessment of the molluscicidal activity of Commiphora molmol (Myrrh) on Biomphalaria alexandrina, Bulinus truncatus and Lymnaea cailliaudi.

作者信息

Allam A F, el-Sayad M H, Khalil S S

机构信息

Department of Parasitology, Medical Research Institute, Alexandria University, Egypt.

出版信息

J Egypt Soc Parasitol. 2001 Dec;31(3):683-90.

PMID:11775095

Abstract

The molluscicidal properties of the oil extract of Commiphora molmol (Myrrh) were tested against Egyptian snail species: Biomphalaria alexandrina, Bulinus truncatus and Limnaea cailliaudi. The impact of the extract on the egg cluches of B. alexandrina and L. cailliaudi was also evaluated. Snails and their eggs were exposed for 24 and 48 hr at 22-26 degrees C to various concentrations of the extract. The results showed different susceptibilities B. alexandrina showed higher LD50 and LD90 (155, 195 ppm) than B. truncatus (50, 95 ppm) and L. cailliaudi (50, 85 ppm) after 24 hr exposure. 100% mortality was obtained for the egg cluches of B. alexandrina and L. cailliaudi at concentrations of 100 ppm and 75 ppm respectively. Lower concentrations were needed to obtain the same results after 48 hr. The present laboratory studies demonstrated that Myrrh has a molluscicidal effect on the snail intermediate hosts, particularly on their eggs. Field studies are recommended.

摘要

测试了没药（Commiphora molmol）油提取物对埃及蜗牛品种的杀螺特性：亚历山大双脐螺（Biomphalaria alexandrina）、截形泡螺（Bulinus truncatus）和卡氏椎实螺（Limnaea cailliaudi）。还评估了该提取物对亚历山大双脐螺和卡氏椎实螺卵块的影响。将蜗牛及其卵在22 - 26摄氏度下暴露于不同浓度的提取物中24小时和48小时。结果显示出不同的敏感性，暴露24小时后，亚历山大双脐螺的半数致死剂量（LD50）和90%致死剂量（LD90）（分别为155、195 ppm）高于截形泡螺（50、95 ppm）和卡氏椎实螺（50、85 ppm）。亚历山大双脐螺和卡氏椎实螺的卵块在浓度分别为100 ppm和75 ppm时死亡率达到100%。48小时后获得相同结果所需的浓度更低。目前的实验室研究表明，没药对蜗牛中间宿主具有杀螺作用，特别是对其卵。建议进行田间研究。