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自七十年代中后期以来,我省稻曲病连年发生,且危害日趋严重。特别是1982年全省发生普遍,估计发病面积在1000万亩左右。一般晚稻发病重于早、中稻,杂交稻重于常规稻,迟熟种重于早熟种,山区重于丘陵、平原区。据调查,受害严重社队的晚稻发病面积占其晚稻总面积的74.5%,平均病粒率
Since the late 1970s, rice smut in our province has been occurring year after year, and its harm has become increasingly serious. In particular, the occurrence of the general situation in the province in 1982, the estimated incidence of about 10 million mu area. Generally late rice incidence heavier than the early, medium, hybrid rice heavier than conventional rice, late maturing species heavier than early maturity, mountain heavier than hilly, plain area. According to the survey, the incidence of late-seasoned grazing affected communities accounted for 74.5% of the total area of late rice, the average disease rate