2005年12月2日到下都乡豪坑村棉花滩电站库区了解网箱养鱼生产情况,发现网养草鱼的箱中有少数草鱼得了疖疮病。网箱规格5m×7m×3m,网目3.5cm,发病草鱼体重1.2￣1.6kg/尾,感染率35%￣40%,死亡率2%￣3%,患病鱼影响外观,销售不出,造成经济损失。笔者现场给养殖户指导防治技术,现 December 2, 2005 to the village under the village of Hau Hang Village Mianhuatan power station reservoir area to understand cage fish production, found that a small number of grass carp net grass box had scabies disease. Cage specifications 5m × 7m × 3m, mesh 3.5cm, the incidence of grass carp 1.2 ~ 1.6kg / tail, the infection rate of 35% ~ 40%, the mortality rate of 2% ~ 3%, affect the appearance of diseased fish, Cause economic loss. The scene to farmers guide the prevention and control technology, now