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全国农业技术推广服务中心根据当前病虫发生基数、栽培条件和气候因素等综合分析,预计中晚稻主要病虫害总体呈偏重发生态势,发生面积10.86亿亩次,比上年增加16.1%。其中,虫害发生面积7.3亿亩次,同比增加20.8%,以迁飞性、钻蛀性害虫为主,“两迁”害虫偏重至大发生;病害发生面积3.56亿亩次,同比增加7.4%,以稻瘟病、纹枯病为主,总体偏重流行。一、早稻和单季中稻前期病虫害发生概况今年上半年,水稻重大病虫害在南方稻区总体偏重发生,发生面积4.1亿
According to the current comprehensive analysis of pest occurrence base, cultivation conditions and climatic factors, the National Agricultural Technology Extension Service Center predicts that the major pests and diseases in late-mid-season rice will generally take the momentum, with an area of 1.086 billion mu, an increase of 16.1% over the previous year. Among them, the occurrence area of pests was 730 million mu, up 20.8% over the same period of last year, with migratory and boring pests as the mainstay, pests of “two shifts” were preoccupied with occurrence of diseases; the area of disease occurrence was 356 million mu, increased by 7.4% % To rice blast, sheath blight-based, overall emphasis on the popular. First, the early rice and single season rice pests and diseases in the first half of this year, the first half of this year, major rice pests and diseases in the southern rice area overall emphasis occurred, the occurrence of an area of 410 million