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蝙蝠蛾(Phassus excrescens Butler)也叫疣纹蝙蝠蛾、东方蝙蝠蛾、柳蝙蝠蛾,是杨树树干的重要害虫。幼虫危害枝干,在髓部钻蛀坑道,使树木长势变弱,且因坑道较大,影响成材质量;树木受害严重时极易遭到风折。此虫近年在黑龙江和辽宁两省十分猖獗,有些地区已遭受严重灾害。据1973-1976年调查,沈阳市所有的森林苗圃已普遍发生此虫。1973年辽宁省林业土壤研究所植物园内2年生加拿大杨因被害而遭到风折的占30％以上。1975年此虫在辽宁省法库县大发生,面积达3万余亩。同年该县三尖泡林场因被此虫危害被迫砍掉杨树大苗2万多株。所以蝙蝠蛾的危害,严重地影响林业生产的发展。为
Phassus excrescens Butler, also known as the warty bat moth, oriental bat moth, willow bat moth, is an important pest of poplar trunk. The larvae endanger the branches and drills the tunnels in the pith to weaken the growth of the trees and the quality of the finished timber will be affected due to the large tunnels. In recent years, the insects have become very rampant in the two provinces of Heilongjiang and Liaoning and some areas have suffered serious disasters. According to the 1973-1976 survey, all pests in Shenyang have been widespread. In 1973, the two-year-old Canadian poplar in the Botanical Garden of Liaoning Provincial Forestry and Soil Research Institute suffered more than 30% of the wind damage due to the victimization. This worm occurred in Faku County, Liaoning Province in 1975, covering an area of more than 30000 acres. In the same year, the county Sanjian bubble farm was forced to cut more than 20,000 poplar trees because of the insects. Therefore, the hazards of bat moths seriously affect the development of forestry production. for