稻粒黑粉病是目前严重影响杂交稻制种产量和质量的一种侵染性病害,为害程度逐年加重。据调查,不育系穗发病率达80%,粒发病率达15～20%。高的达40%以上。迫切需要防治。今年我们公司使用江苏省农科院提供的“灭黑灵”来防治汕优63制种稻粒黑粉病取得了很好的效果,现将有关情况介绍如下: Rice powdery mildew is an infective disease that seriously affects the yield and quality of hybrid rice seed production. According to the survey, the incidence of male sterile lines 80%, grain incidence of 15 to 20%. High up to 40% or more. Urgent need of prevention and treatment. This year our company uses Jiangsu Provincial Academy of Agricultural Sciences to provide “off black spirit” to control Shanyou 63 system of rice powdery mildew has achieved good results, the relevant circumstances are as follows: