国槐(Sophora japonica)在古城西安栽培历史悠久。据文献记载,公元351～385年前秦朝就有种植,发达最盛时期的唐朝,长安城内的行道树仍以槐树为主。因为国槐冠大叶浓、寿命长、树型高大美观、耐修剪,并具有抗有害气体及烟尘的特性,所以是园林绿化的骨干树种之一,也是一种优良的乡土树种。近几年来,由于国槐小卷蛾的严重发生和危害,造成树木大量枯梢,影响树木生长和绿化效果。为了掌握其发生规律,探讨有效的防治方法,促进园林绿化建设,我们从1976～1978年结合市园林病虫害普查,对该虫进行了生物学特性的调查研究和防治工 Sophora japonica has a long history of cultivation in the ancient city of Xi’an. According to the literature, Qin Dynasty was planted before the year 351-385. The most prosperous period of the Tang Dynasty and the Chang’an City was still dominated by acacia trees. Because Sophora japonica crown thick, long life, tall and beautiful tree, anti-pruning, and has anti-harmful gases and fumes characteristics, it is one of the key species of landscaping, but also an excellent native tree species. In recent years, due to the serious occurrence and damage of Sophora japonica Thunbergii, a large number of trees are caused to affect the growth and afforestation effects of trees. In order to grasp its occurrence law, to explore effective methods of prevention and control to promote the construction of landscaping, we from 1976 to 1978 with the city of garden pests and diseases census, the insect biological characteristics of the investigation and prevention and treatment workers