发生为害特点。柑桔根腐病的发生及防治１发生为害特点柑桔根腐病的发生为害有以下特点：一是引起植株大量异常落叶、落果、严重时全株死亡。１９９６年８月６～９日历时３ｄ时间，由县植检站和工程科联合对建阳坪乡、利方岩村３组１３户村农的１３０５株高挽脐橙进行调查，该 Harmful characteristics occur. Occurrence and control of citrus root rot 1 occurs damage characteristics Citrus root rot disease has the following characteristics: First, cause a large number of plant abnormal leaves, deciduous, severe death of the whole plant. August 6 to September 9, 1996 lasted three days, by the county phytosanitary station and the Engineering Branch of Jiangyang Pingxiang, Li Fang Yancun 3 groups of 13 farmers 1350 high-navel orange survey, the