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1981—1985年分别于气温较高、前期干旱、后期雨季明显和气候凉爽、干旱的苹果栽培区设置了20多个释放点,进行了西方盲走螨区域适应性试验。结果表明,释放西方盲走螨凡是取得控制叶螨成功的地区,均具有相对湿度较低、年降雨量少的共同特点。如我国西北部的甘肃兰州、宁夏银川、新疆石河子、阿克苏等,此带年降雨量在400毫米以下,6、7、8三个月平均相对湿度在70％以下。而降雨量超过600毫米,6、7、8三个月平均相对湿度高于80％的地区,如江苏徐州、山东青岛、辽宁兴城、河北昌黎和北京等地,则不适宜西方盲走螨生存、发展。
In 1981-1985, more than 20 release points were set up in the areas with high temperature, early drought, clear rainy season and cool and arid apple crop in the later period, respectively. The results showed that the common features of low relative humidity and few annual rainfall were all released in the areas where the success of western spider mite control was released. Such as Lanzhou in Gansu, Yinchuan in Ningxia, Shihezi in Xinjiang and Aksu in the northwestern part of China. The annual rainfall in this belt is below 400 mm, and the average relative humidity in the three months of 6, 7 and 8 is below 70%. However, areas with over 600 mm of rainfall and an average relative humidity of 6,7,8 over three months such as Xuzhou in Jiangsu Province, Qingdao in Shandong Province, Xingcheng in Liaoning Province, Changli in Hebei Province and Beijing, are not suitable for western blind-walking mites Survival, development.