【摘 要】
：
近年来，桃树虫害发生日趋严重，尤其是桃蛀螟、梨小食心虫、椿象为害严重。一般果园受害率达２０％左右，靠近村边或周围树木多的桃园，果实受害率高达６０％～７０％，失去食用价值和商品价值。为此，去年我
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近年来，桃树虫害发生日趋严重，尤其是桃蛀螟、梨小食心虫、椿象为害严重。一般果园受害率达２０％左右，靠近村边或周围树木多的桃园，果实受害率高达６０％～７０％，失去食用价值和商品价值。为此，去年我们在桃园进行了套袋防虫试验，取得了良好效果，其防虫效果高达...
In recent years, peach tree pests occur more and more serious, especially the peach borer, pear borer, stinkbug serious damage. Damage rate of general orchards of about 20%, near the village or the surrounding trees and more Taoyuan, the rate of fruit damage as high as 60% to 70%, loss of food value and commodity value. For this reason, we carried out bagging pest control tests in Taoyuan last year and achieved good results with pest control effects up to ...
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