杀螺胺乙醇胺盐与四聚乙醛对福寿螺的毒力测定  

Toxicity of Niclosamide Ethanolamine Salt and Metaldehyde to Pomacea canaliculata Lamarck

作　　者：黄水娥 万自学 李开来 邹高峰 HUANG Shui-e;WAN Zi-xue;LI Kai-lai;ZOU Gao-feng(Changsha Drainage Co.,Ltd.,Changsha 410000,PRC;College of Plant Protection,Hunan Agricultural University,Changsha 410128,PRC;Ningxiang Rural Revitalization Service Center,Ningxiang 410600,PRC)

机构地区：[1]长沙市排水有限责任公司,湖南长沙410000 [2]湖南农业大学植物保护学院,湖南长沙410128 [3]宁乡市乡村振兴服务中心,湖南宁乡410600

出　　处：《湖南农业科学》2024年第8期51-56,共6页Hunan Agricultural Sciences

基　　金：湖南省市联合基金资助(2022JJ50247)。

摘　　要：为探究不同生长阶段、不同性别福寿螺对登记认证的杀螺胺乙醇胺盐与四聚乙醛的抗性差异,开展了二者对福寿螺的室内毒力试验。结果表明:杀螺胺乙醇胺盐对籽螺和成雄螺的LC_(50)分别为0.014和0.699 mg/L。随着福寿螺发育进程的变化,杀螺胺乙醇胺盐对福寿螺的毒力逐渐降低,并对不同性别福寿螺的毒力无显著差异。四聚乙醛对籽螺的LC_(50)浓度最高为13.096 mg/L,且对成雄螺(LC_(50):0.587 mg/L)的毒力显著高于成雌螺(LC_(50):0.723 mg/L),四聚乙醛对福寿螺毒力随福寿螺发育进程的变化逐渐上升。杀螺胺乙醇胺盐与四聚乙醛的质量浓度复配比为3∶2时毒力比率最大,达到1.78。Indoor toxicity tests were conducted to compare the resistance of Pomacea canaliculata Lamarck of different growth stages and genders to niclosamide ethanolamine salt and metaldehyde.The results showed that the median lethal concentrations(LC_(50))of niclosamide ethanolamine salt to the larvae and male adults of P.canaliculata Lamarck were 0.014 mg/L and 0.699 mg/L,respectively.The toxicity of niclosamide ethanolamine salt to P.canaliculata Lamarck gradually decreased within the growth period,and niclosamide ethanolamine salt showcased no significant difference in the toxicity to male and female P.canaliculata Lamarck.The highest LC_(50) of metaldehyde to the larvae was 13.096 mg/L.Metaldehyde showed stronger toxicity to male adults(LC_(50) of 0.587 mg/L)than to female adults(LC_(50) of 0.723 mg/L).The toxicity of metaldehyde to P.canaliculata Lamarck gradually increased within the growth period.The combination of niclosamide ethanolamine salt with metaldehyde at the ratio of 3:2 exerted the strongest toxicity,with the toxicity index reaching 1.78.

关 键 词：杀螺胺乙醇胺盐 四聚乙醛 福寿螺 半致死浓度 毒力测定 

分 类 号：S482.5[农业科学—农药学] X174[农业科学—植物保护]