近几年来 ,随着江苏省罗氏沼虾养殖业的发展 ,养殖面积不断扩大 ,其病害也越来越多 ,危害也越来越严重。特别是近两年来 ,罗氏沼虾白体病发病率越来越高 ,发病地区也从苏南至江苏全境。罗氏沼虾白体病亦称白斑病 ,其主要症状是罗氏沼虾身体出现白斑 ,然后向尾部发展 ,变白 ,再 In recent years, with the development of Macrobrachium rosenbergii aquaculture in Jiangsu Province, the area of ​​aquaculture has been continuously expanded, and the diseases have been more and more and the harms have become more and more serious. Especially in the past two years, the morbidity of white spot disease of Macrobrachium rosenbergii is getting higher and higher, and the incidence areas are also from Jiangsu to Jiangsu. Macrobrachium rosenbergii also known as leukoplakia disease, the main symptoms are Macrobrachium rosenbergii white body, and then to the tail of the development, white, and then