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依据当前晚稻病虫基数,品种布局、气候特点和病虫发生规律等综合分析,预计广东省晚稻中后期病虫总体偏重发生,其中褐飞虱重发生。一、发生趋势稻飞虱:重发生。发生面积1600万亩次。稻纵卷叶螟:中等发生。发生面积1000万亩次。钻蛀性螟虫:偏轻发生。发生面积500万亩次。粘虫:偏轻发生,局部中等发生。发生面积200万亩次。稻瘟病:中等发生。感病品种、历史病区潜在流行风险。发生面积240万亩次。
Based on the current analysis of pest insects and insect pests in late rice, variety distribution, climatic characteristics and the occurrence of pests and diseases, it is estimated that the pest and disease in the late rice of late rice in Guangdong Province will generally occur heavily, and the BPH occurrence will occur again. First, the trend occurs Planthopper: re-occurrence. Occurred area of 16000000 mu times. Cnaphalocrocis medinalis: occurs moderately. Occurred area of 10 million mu times. Bore borers: partial light occurs. Occurred area of 5000000 mu times. Armyworms: partial light occurs, the local occurrence of moderate. Occurred area of 200 mu times. Magnaporthese: Moderately occurring. Susceptible breeds, potential epidemic risks in historical wards. Occurred area of 240 mu times.