柑桔溃疡病是柑桔重要病害之一，而脐橙高度感病。笔者连续3年对该病进行综合防治，效果显著。（1）冬季彻底清园，修剪下的病枝、病叶集中烧毁。然后用波美1度石硫合剂均匀喷射树冠，翌年春季萌芽前半个月用波美1度的石硫合剂再喷射一次，做到彻底清园。（2）生长季节加强药剂 Citrus canker is one of the important diseases of citrus, while the navel orange is highly susceptible. The author for three consecutive years of comprehensive prevention and treatment of the disease, the effect is significant. (1) Completely clear the park in winter, pruning diseased branches, sick leaves concentrated burned. Then Baume 1 degree stone sulfur mixture evenly spray canopy, the first half of the spring of next year with Baume and 1 degree of sulfur sulfur mixture spray again, so thoroughly Qingyuan. (2) growing season to strengthen the agent