葡萄蔓割病药剂防治试验初报楚雄，李瑛，郭维跃（河北省鹿县林业局０７５６００）葡萄蔓割病（又名蔓枯病）是葡萄枝蔓重要病害，近年来在葡萄上大量发生。我县龙眼葡萄发病率达６１．５％，枝蔓死亡率达７８％，枝蔓感病轻者使树势衰弱，重者沿病斑干裂枯死，造成大量葡... Preliminary Report on Preventing and Controlling Experiment of Gramineae Chuxiong, Li Ying and Guo Weiyue (Deer County Forestry Bureau, Hebei Province 075600) Gramineae is a serious disease of grape vine and has occurred in large quantities in recent years. The incidence of longan grapes in our county reached 61.5%, and the death rate of branch vine was 78%.