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为了解福州地区桃园梨小食心虫的发生规律,找到合适的防治时期和方法,对福州地区桃园梨小食心虫进行了连续4年的发生动态监测以及为害情况调查。结果表明:虽然每一年的发生动态都有差异,但总体表现出了一定规律,每年3月初桃树开花展叶时期,梨小食心虫呈现暴发状态,数量出现高峰,另外一个高峰位于6月中旬至7月新梢生长时期,4、5、8、9月数量较少,10月至第二年2月蛰伏越冬,根据折梢率和蛀果率的调查也得出结论,认为在福州地区梨小食心虫的为害主要在新梢上,对果实为害较小,而防治梨小食心虫的最佳时间段为每年的3月、6月和7月。
In order to find out the occurrence regularity of Pear Mungbean Pest in Taoyuan, Fuzhou, and to find the suitable control period and method, the dynamic monitoring and pest damage investigation of Peach Mungbean in Taoyuan, Fuzhou were carried out for four consecutive years. The results showed that although there were some discrepancies in the dynamics of each year, the overall pattern showed a certain pattern. At the beginning of March each year, peach moths emerged outbreak, the number peaked and the other peak was in mid-June During the period of shoot growth in July, the number of April, May, August and September was small, and the winter dormant from February to October of the following year. According to the investigation of the rate of shoots and the rate of fruit boring, it was concluded that in Fuzhou area Pear Mungbean insects damage mainly in the shoots, less damage to the fruit, and the best time to prevent pears borer worms for the annual March, June and July.