3种杀螺剂防治稻田福寿螺药效试验

Efficacy trial of 3 molluscicides on controlling apple snail (Ampullaria gigas spix) in paddy field

摘要: 进行密达、梅塔、杀螺胺乙醇胺盐3种药剂对福寿螺的田间药效试验，结果表明:每667 m²使用6%密达GR 500 g、5%梅塔GR 600 g和50%杀螺胺乙醇铵盐WP 60 g对稻田福寿螺的杀螺效果、保苗效果均较理想，药后7 d的防效均达到90%以上，药后14 d防效达94%以上，药后14 d秧苗损失率分别为1.29%、0.83%和0.92%，3种药剂均可作为防治稻田福寿螺的优选药剂。

Abstract: Efficacy experiments of 3 molluscicides, i.e. Metaldehyde, Niclosamide ethanolamine, and Metal on controlling apple snail in paddy field were conducted. The results showed that ideal controlling efficiency on the apple snail and seedling-protection effect were received with 6% Metaldehyde GR 500 g, 5% Metal GR 600 g, and 50% Niclosamide ethanolamine WP 60 g per 667 m². The efficacy was over 90% at 7th day after drug application, and above 94 at 14th day. The seedling loss rate at 14 th day after drug application with above 3 molluscicides were only 1.29%, 0.83%, 0.92%, respectively, which could be all applied in the control of apple snail in paddy field.