鱼苗白粉病是由藻类植物寄生于鱼体皮肤后,刺激鱼体增生粘液,长出一层白粉状物。它直接影响到鱼苗的生长,重者会死亡。采用硫酸铜、生石灰防治此病,效果虽然较好,但对鱼苗有毒害作用,使用不当,易引起鱼类大批死亡。采用枫树叶防治鱼苗白粉病,不仅效果好,而且无副作用。 防治方法:肉眼发现鱼苗体 Fry powdery mildew is caused by algae parasitic on the skin of fish, stimulate the proliferation of mucus, grow a layer of white powder. It directly affects the growth of fry, severe cases will die. The use of copper sulfate, lime for the prevention and treatment of the disease, although the effect is good, but the poisoning of fish fry, improper use, easy to cause a large number of fish deaths. Maple leaf prevention and control fry powdery mildew, not only good effect, but no side effects. Control methods: the naked eye found fry body