近年来,大水面施肥养鱼发展迅猛。一般在水库施肥养鱼过程中,病虫害相对较少,但大水面主养的鲢、鳙鱼的中华鳋病较普遍,严重影响鱼类的生长,是大水面施肥后不长鱼的主要原因之一,也是造成大水面养殖效益低下的突出因素,因此,大水面养鱼防治中华鳋病更显重要。 In recent years, the rapid development of aquatic fertilization fish. Generally, there are relatively few diseases and insect pests in the process of fertilization and fish farming in reservoirs, but the large-scale breeding of Chinese silver carp with bighead carp and bighead carp is more common and seriously affects the growth of fish, which is the main reason for not growing fish after large-scale water fertilization First, it is also a prominent factor causing the low surface water efficiency of large-scale aquaculture. Therefore, the prevention and control of water pollution caused by large-scale surface water fish is more important.