菖蒲,属多年生草本植物,全国大部分地区均有野生和种植。4月下旬至9月下旬是草鱼细菌性病害(赤皮、肠炎、烂鳃)发生季节,用菖蒲可防治这3种病害,用药后10天停止死鱼,且方法简便易行,成本低廉,防效可达90%左右,具体做法如下:1、搅拌法。鱼塘放苗前,先将塘水排干,清除塘边杂草和 Iris, a perennial herb, is wild and planted in most parts of the country. Late April to late September is the season of grass carp bacterial diseases (red skin, enteritis, rotten gill) season, with iris can prevent these three diseases, stop dead fish 10 days after treatment, and the method is simple and easy, low cost, Control effect of up to 90%, the specific practices are as follows: 1, mixing method. Fish pond Fangmiao before draining the pond water, clear the weeds and ponds