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果树在生长过程中,经常发生一些害虫为害。基于此,对常见的3种害虫为害的症状和生活习性进行阐述,并提出一些行之有效的防治方法。
During the growth of fruit trees, some pests often occur. Based on this, the common symptoms and habits of the three kinds of pests were elaborated, and some effective prevention and control methods were put forward.