不同药剂对莲田福寿螺防效试验

Control efficacy of different molluscicides on Ampullaria gigas in lotus field

摘要: 为了有效防控莲田福寿螺的危害,选用不同杀螺剂对莲田福寿螺进行田间药效试验,结果表明:每667 m²用70%杀螺胺可湿性粉剂40 g的防效最好,药后7 d、15 d防效分别为89.71%、98.25%,其药效期长,药后22 d防效为99.50%;其次为每667 m²用70%杀螺胺乙醇胺盐可湿性粉剂50 g的防效,药后7 d、15 d、22 d防效分别为81.62%、94.90%、95.95%。防治福寿螺可采用70%杀螺胺可湿性粉剂和70%杀螺胺乙醇胺盐可湿性粉剂交替使用。

Abstract: Control efficacy of different molluscicides on Ampullaria gigas in lotus field were detected in order to effectively reduce the damage of Ampullaria gigas. The results showed that the 40 g 70% Niclosamide wettable power per 667 m² had the most efficient function, the control efficacy was 89.71%, 98.25% respectively when treated for 7 and 15 days, and the efficacy period lasted long, which was 99.5% after treatment for 22 days. The treatment 50 g 70% Niclosamide ethanolamine salt wettable power per 667 m² also had the better control efficacy, which was 81.62%, 94.90%, 95.95% respectively when treated for 7, 15, 22 days. Therefore the 70% Niclosamide wettable power and 70% Niclosamide ethanolamine salt wettable power were recommended to be used alternately to control Ampullaria gigas.