重阳木(Bischofia javanica Bl)是我国南方各地的优良绿化树种之一,近年来由于受丛枝病的为害,生长受到严重的影响,受害严重者可造成枯死。此病在安徽、浙江、湖南、湖北、江苏、上海等地的部分地区发生。1976年上海龙华苗圃发现重阳木丛枝病成片发生,自此以后病害日趋严重。1982年在安徽农学院内调查重阳木行道树幼树及20年生大树187株,其中有94株发病,发病率达50％。目前,该病已成为影响重阳木栽植的主要病害。 Bischofia javanica Bl is one of the finest tree species in different parts of southern China. In recent years, its growth has been severely affected by the broom disease. Severe victims can cause death. The disease in Anhui, Zhejiang, Hunan, Hubei, Jiangsu, Shanghai and other places in some areas. In 1976, Shanghai Longhua Nursery found that the disease of Chongyang wood was twigged and became more and more serious. In 1982, Anhui Province Agricultural College in Chongyangmu sidewalk trees and trees survey of 187-year-old trees, of which 94 strains of the disease, the incidence rate of 50%. At present, the disease has become a major disease affecting the planting of Chongyang wood.