论文部分内容阅读
国内现场应用的灭螺剂均因速效、高浓而污染环境,损害水产资源,但波阳湖区大面积机耕灭螺留下的小块死角,仍需药物处理。为了提供一种在大水体中使用安全的灭螺剂型,作者近三年来作了如下研究。 1979年将五氯酚钠,贝螺杀和巴丹加工成颗粒剂,外包酚醛树脂作室内试验,具缓释灭螺作用,而对鱼类毒性显著降低。翌年将五氯酚钠颗粒压成片剂,外包酚醛树脂,制成10％缓释片。以每公斤水加0.1～0.2克片剂,每天换等量水作室内试验。在半个月内药物浓度维持0.1～0.3毫克/升,试验
The domestic application of molluscicide are quick, high concentration and pollute the environment, damage to aquatic resources, but a large area of Bo Yangyang large trash snail left small pieces of dead, still need drug treatment. In order to provide a safe use of chlorhexidine in large bodies of water, the authors made the following studies in the past three years. In 1979, sodium pentachlorophenate, shellfish and bacadin were processed into granules, and phenolic resin was used as an in-house experiment, with sustained-release molluscicidal effect and remarkably reduced toxicity to fish. The following year pentachlorophenol sodium granules into tablets, outsourcing phenolic resin, made of 10% sustained release tablets. To 0.1 ~ 0.2 grams of water per kilogram of tablets, water for the same amount of water for laboratory tests. In half a month to maintain the drug concentration 0.1 ~ 0.3 mg / l, test