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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,防治鱼病效果显著。但是施药方法不当,不但起不到防治鱼病的效果,还会适得其反,加重鱼病,甚至造成严重的死亡。因此夏秋季节鱼塘施药应注意以下问题:
Summer and autumn are the peak season of fish growth, but also the season of fish disease epidemic, the regular application of drugs to fish ponds can kill fish body surface, gills and pathogens in water, prevention and treatment of fish disease significantly. However, improper pesticide application methods not only fail to prevent and cure fish diseases, but also counterproductive diseases, aggravating fish diseases and even causing serious deaths. Therefore, summer and autumn season ponds should pay attention to the following issues: