稻曲病是目前较难防治的稻田病害。据调查,发病严重的田块每亩可减产20～50斤。用多菌铜防治稻曲病,使发病穴率、病株率、病粒率明显下降,一般防效都在85％以上,在水稻出穗前10～18天使用6％多菌铜粉剂喷粉防治,每亩用量5斤,对于易感病的品种和贪青晚熟的田块,以 False smut is currently difficult to control rice diseases. According to the survey, the incidence of serious plots per acre can cut 20 to 50 pounds. With multifungi control of rice false smut, so that the incidence of points rate, disease rate, disease rate significantly decreased, the general control effect is above 85%, 10 to 18 days before heading out of rice using more than 6% copper powder agent spray Powder control, the amount of 5 pounds per acre, for susceptible varieties and greed green late field to