许昌市有各种果树面积14.9万亩,其中:水果10.1万亩,占果树总面积的67.8%。近几年来,由于缺乏管理,蛀干性害虫发生普遍。经普查,虫蛀株率一般为36—70%,严重的果园高达90%以上。苹果,桃、梨受害重,其他次之。以天牛为主的蛀干性害虫,危害枝干中心木质部,轻者落花、落果而后枯死,重者折枝,造成严重减产。我们从1984—1986年进行了自制双包毒签防治试验,经三年实践认为,磷化锌双包毒签适时插虫洞是简便易 Xuchang City has a variety of fruit trees area of ​​14.9 hectares, of which: 10.1 hectares of fruit, accounting for 67.8% of the total area of ​​fruit trees. In recent years, dry pests have become common due to lack of management. The census, moth-eaten strain rate is generally 36-70%, serious orchards as high as 90%. Apple, peach, pear victimization, followed by other. The beetles dominated by dry pests, endanger the xylem branch center, the light falling, fruit fall dead, heavy branches, resulting in serious cuts. We from 1984-1986 homemade self-made double-labeled poisoning prevention and control test, after three years of practice that the double-coated zinc phosphate poisoning timely insertion worms hole is simple and easy