【摘 要】
：
早稻生长中后期,病虫害种类较多,往往交叉混合发生,特别是今年降雨的时间长、雨量集中,天气时晴时雨,6月份出现的高温日多,十分有利于早稻中后期病虫害的发生危害。因此,各地
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早稻生长中后期,病虫害种类较多,往往交叉混合发生,特别是今年降雨的时间长、雨量集中,天气时晴时雨,6月份出现的高温日多,十分有利于早稻中后期病虫害的发生危害。因此,各地必须加强调查观察,注意发生态势,及时抓好防治。早稻中后期的主要病虫害。危害叶片的病害主要有叶稻瘟、白叶枯病、云形病、褐色叶枯病、纹枯病等,一般在早稻孕穗至齐穗期严重发生,为害后稻叶出现褐色、黄褐色、白色斑点或条纹,最后导致叶片提早枯死,影响功能叶的正常生长,
Early and late rice growth, pests and diseases are many, often cross-mixing occurs, especially this year’s rainfall for a long time, rainfall, sunny when the rain, high temperatures appear in June, is very conducive to pests and diseases in the late rice damage . Therefore, all localities must step up investigation and observation, pay attention to the situation and timely grasp prevention and control. The main pests and diseases in the middle and late rice. Harm the leaves of the main diseases are leaf blast, bacterial leaf blight, cloud disease, brown leaf blight, sheath blight, etc., generally in early rice booting to full heading serious occurrence of brown rice, brown, White spots or stripes, and finally lead to dead leaves early, affecting the normal growth of functional leaves,
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