绿盲蝽是棉花主要害虫,正常年景一年发生五代。1978年前零星偶发,以后越发越重,损失率几乎逐年上升。据78～82年调查,平均株害率68.42％,为害指数41.6,损失率22.38％(图1)。绿盲蝽大发生的原因有四点: (一)气候温湿有利虫害发生绿盲蝽大发与6～8月的降水量、温度、日照等气候因子关系很大。蕾期虫量、株害趋势与早春杞柳虫口基数及6月份气候因素的关系见表1。 The green bugs are the main pests of cotton, five generations a year normal years. Before 1978 sporadic sporadic, after more and more serious, the loss rate increased year by year. According to the survey of 78-82 years, the average rate of plant-strain was 68.42%, the damage index was 41.6, and the loss rate was 22.38% (Figure 1). There are four reasons for the occurrence of Apolygus lucorum: (A) the occurrence of favorable temperature and humidity bugs Myzus persicae and precipitation in June to August, temperature, sunshine and other climate factors. The correlation between the number of buds, the trend of plant damage and the number of early stage poplar and the climate factors in June were shown in Table 1.