柑桔黄龙病、溃疡病是柑桔上的重要病害,在柑桔园一旦发生,轻则影响产量、降低品质,重则摧毁果园,使生产遭受严重损失。已在我国局部发生的这两种病害对发展我国柑桔生产是严重威胁。柑桔黄龙病、溃疡病主要是随着带病苗木的调运而远距离传播蔓延的,所 Citrus Huanglongbing, ulcer disease is an important disease on citrus, citrus orchards in the event, ranging from the impact of yield, reduce the quality of heavy or destroy the orchard, so that production suffered serious losses. The two diseases that have occurred in our country are a serious threat to the development of citrus production in our country. Citrus Huanglongbing, ulcer disease is mainly transported as diseased nursery stock and spread long-distance spread, the