夏秋季是鱼类生长旺季,也是鱼病流行季节,定期对鱼塘施用药物,可杀灭鱼体表、鳃部及水体中的病原体,起到防治鱼病的效果。若施药方法不当,不但起不到防治鱼病的效果,还会适得其反,加重鱼病,严重的甚至造成鱼类死亡。因此,鱼塘施药应注意以下问题:1.对症下药。一般对于濒于死亡 Summer and autumn are the peak season of fish growth, but also the epidemic season of fish diseases, regular application of drugs to fish ponds can kill the surface of fish, gills and water pathogens, play a preventive effect of fish disease. If the pesticide is not applied properly, not only will it not be able to prevent and cure fish diseases, it will also be counterproductive. This will aggravate fish diseases and cause serious deaths. Therefore, fish ponds should pay attention to the following issues: 1. Generally for the brink of death