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邱北县1963年以来,逐年引进苹果树苗栽植,在国营农林牧场和社办林场建立了一批果园;广大社员、居民、机关、学校,在宅旁种植了苹果树。近年来黄蓝眼天牛危害枝干严重,尤其是城区近郊甚烈,有苹果分布的地区枝干被害状几乎到处皆是,城郊小果园和零星果木被害率达百分之百,7月中旬到10月幼虫噬食果树从蛀孔排出粉质木屑和排泄物十分醒目,几天后似“黄毛虫”一样爬在树干上。这种苹果树长势衰弱,未老
Since 1963, Qiu Bei County has introduced apple seedlings year by year. A number of orchards have been set up in state-owned agro-forestry ranches and community-owned forest farms. Many members, residents, institutions and schools have planted apple trees beside their houses. In recent years, the yellow eye pests endanger the branches seriously, especially in the suburbs of the city is very strong, the distribution of the branches in the area almost all victims of the victims, the suburbs of small orchards and scattered fruit trees victims rate of 100% mid-July to October The larvae eats the fruit tree from the wormhole to discharge the silt and excrement very strikingly. After a few days it looks as if the “yellow caterpillar” crawls on the tree trunk. This apple tree grows weak, not old