往年,我们常采用0.4～0.5ppm晶体敌百虫进行治疗鱼寄生虫病,虽也取得了一些效果,但就是一次用药的成本较高,养鱼户治鱼病支出大。鉴此,今年我站采用江都鱼药厂生产的B型灭虫灵来治疗鱼体表寄生虫病,如锚头鳋病.从试用和大面积使用的效果均令人满意。例如都昌县水科所4口高产试验池(40 In previous years, we often used 0.4 ~ 0.5ppm crystal trichlorfon treatment of parasitic parasites, although also achieved some results, but it is a high cost of medication, fish farmer costs large fish diseases. As a result, this year I used the type B insecticide produced by Jiangdu Fish Medicine Factory to treat fish parasites such as headache, which are satisfactory from both trial and large-scale use. For example, Duchang County Branch 4 high-yield test wells (40