榆兰金花虫是一种专食性害虫,成虫和幼虫均为害榆树叶片。我国华北、东北、华东和华中地区都有分布。近年来,我省廊坊地区连续发生,使树冠枯黄、影响生长,甚至造成树木死亡。为指导防治,我们进行了野外观察和室内饲养,并作了大面积防治调查,报告如下。 Ulmus lagomum is a herbivore pest, adult and larvae are harmful Ulmus leaves. China’s North China, Northeast China, East China and Central China have distribution. In recent years, the Langfang area in our province continuously occurs, making canopy yellowish, affecting growth and even causing trees to die. In order to guide the prevention and treatment, we conducted field observation and indoor rearing, and made a large-scale prevention and control investigation, the report is as follows.