杀螺剂(E-51) 是由50%硫酸铜一水化物渗于合成橡胶所制成的颗粒剂型和丸状剂型。释放时距为60～90天。室内试验,用室内培养的扁卷螺(Biom-phalaria glabrata)放于含有颗粒剂和丸状剂的容器里,每一剂型设逐日换水和不换水两组。每日检查螺蛳死亡。铜的水平(浓度)室内用 Cuprethol 方法测定,现场用专门的检查箱,分析水的铜含量。结果表明,缓释剂硫酸铜,颗粒剂的有效成分为4毫克/升时, Morax (E-51) is a granular and pellet formulation made of 50% copper sulfate monohydrate infiltrated with synthetic rubber. The release time is 60 ~ 90 days. Laboratory tests were carried out in a chamber containing pellets and pellets with an in-house cultured Biom-phalaria glabrata, each with two daily and two daily water changes. Daily snail death. The copper level (concentration) indoors using Cuprethol method determination, the scene with a special inspection box, analysis of copper water. The results showed that the slow release agent copper sulfate, granules active ingredients 4 mg / L,