空心莲子草皂素毒杀福寿螺的试验研究  

The toxicity test for Alternanthera philoxeroides saponin against Pomacea canaliculata(Lamarck)

作　　者：王志高[1] 谭济才[1] 刘军[1,2] 

机构地区：[1]湖南农业大学生物安全科学技术学院,长沙410128 [2]湖南环境生物职业技术学院,衡阳421005

出　　处：《上海农业学报》2011年第1期80-83,共4页Acta Agriculturae Shanghai

基　　金：湖南省财政基金[湘农指2008(54);2009(55);2010(45)]资助

摘　　要：在实验室内研究不同浓度不同pH的空心莲子草皂素提取液毒杀大、中、小福寿螺的效果,结果表明:随着空心莲子草皂素溶液浓度不断增加,福寿螺的死亡率不断增大,当皂素溶液浓度为200mg/L时,72h福寿螺的平均死亡率为79%。不同pH的空心莲子草皂素溶液毒杀福寿螺效果差异显著,当皂素溶液浓度为150mg/L且pH为9的条件下,72h的杀螺率可达89%;碱性条件可显著提高皂素溶液的杀螺效果。The toxic effects of A.philoxeroides saponin at different concentrations and pH values on Pomacea canaliculata of different sizes were studied in laboratory.The results showed that the mortality of P.canaliculata increased with the concentration of A.philoxeroides saponin increasing and was averagely 79%at 72 h when the concentration was 200 mg/L.The toxic effects of the saponin at different pH values were significantly different.When the saponin concentration was 150 mg/L and its pH was 9,the mortality of P.canaliculata at 72 h was up to 89%;the toxic effect of the saponin on P.canaliculata could significantly be improved in alkaline conditions.

关 键 词：福寿螺 空心莲子草 皂素 死亡率 毒性试验 

分 类 号：S46[农业科学—植物保护]