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本文初步探讨了降雨对苹果蠹蛾分布的影响。作者在敦煌进行了室内模拟降雨实验，其中对越冬代老熟幼虫和蛹的实验结果为：经浸水＜１５ｓ、１０ｍｉｎ、３０ｍｉｎ、１ｈ、１２ｈ和２４ｈ的实验，幼虫死亡率为２１％～５２％，化蛹率为３４％～５６％；蛹的死亡率为５９％～１００％，羽化率为０～１９％；ＳＳＲ测验表明，浸水时间愈长，幼虫和蛹的死亡率愈高，而化蛹率和羽化率则愈低。经模拟微雨、小雨、中雨、大雨和暴雨冲淋实验，幼虫死亡率为９％～５２％，化蛹率为３６％～６８％；蛹的死亡率为６４％～７２％，羽化率为９％～１８％；ＳＳＲ测验表明，降雨强度愈大，幼虫和蛹的死亡率愈高，而化蛹率和羽化率则愈低。经模拟不同的降雨量、降雨强度和降雨次数组合的冲淋实验，幼虫死亡率为５９％～７２％，化蛹率为２４％～３５％；蛹的死亡率为６７％～８１％，羽化率为１１％～１９％；ＳＳＲ测验表明，降雨量愈大、降雨强度愈高及降雨次数愈多，幼虫和蛹的死亡率愈高，而化蛹率和羽化率则愈低。结合我国东部地区的气候特点来分析，该地区属于季风气候类型，全年雨量集中在夏季，不利于该虫的发生
In this paper, the effect of rainfall on the distribution of codling moth The authors conducted indoor simulated rainfall experiments in Dunhuang. The experimental results on overwintering mature larvae and pupae showed that the mortality of larvae was 21% -52% after being immersed in water for <15s, 10min, 30min, 1h, 12h and 24h. , The pupation rate was 34% -56%; the pupal mortality rate was 59% -100%, and the emergence rate was 0-19%. The SSR test showed that the longer the immersion time, the higher the mortality of larvae and pupae, The pupae rate and emergence rate are lower. The results showed that the death rate of larvae was 9% ~ 52% and the pupation rate was 36% ~ 68%. The pupal mortality rate was 64% ~ 72% SSR test showed that the greater the rainfall intensity, the higher the mortality of larva and pupa, while the lower the rate of pupation and emergence. After simulating different rainfall experiments, the mortality of larvae was 59% -72% and the pupation rate was 24% -35%. The pupal mortality rate was 67% -81% The results showed that the higher the rainfall, the higher the rainfall intensity and the more rainfall, the higher the mortality of larvae and pupae, while the lower the rate of pupation and emergence. Combined with the climatic characteristics of eastern China to analyze, the area belongs to the monsoon climate type, the annual rainfall concentrated in the summer, is not conducive to the occurrence of the pest