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】江淮稻区白背飞虱呈迁入代至主害代的爆发型相，发生程度为基数决定型。根据白背飞虱历年田间系统调查资料和灯下虫量的逐步回归分析，证明江淮稻区主害代（２代）发生程度与迁入峰后７月１５日白背飞虱总虫量显著相关（Ｒ２＝０．７１０７），并分别建立白背飞虱预警指标。以为害损失５％以下为标准，主害代高峰期虫量为１５头／穴，比原防治指标稍宽。由此提出病虫兼治的防治对策和技术规范，比原传统方法少用药１次。
】 Jianghuai rice white-spotted planthopper was moved into the generation of the main generation of the explosive phase, the occurrence of the base type decision. According to the stepwise regression analysis of field system survey data and lightworm numbers of whitebacked planthopper over the years, it was proved that the occurrence of the main damage generation (2nd generation) and the total insect population of whitebacked planthopper in Jianghuai rice area on July 15 (R2 = 0.7107), and established the warning index of whitebacked planthopper. Take the loss of less than 5% as the standard, the main pest on the peak of the amount of 15 head / cave, slightly wider than the original control indicators. The proposed prevention and treatment of both pest and disease control strategies and technical specifications, less than the traditional method of medication 1 times.