茶芽枯病分布及症状:茶芽枯病是近年新发生的一种病害,在大部分茶区均有分布。茶树感病后,芽梢生长明显受阻,直接影响春茶产量和品质。主要为害春茶一芽1～3叶,叶上病斑先在叶尖或叶缘产生淡黄色或黄褐色,扩展后呈不规则形。芽尖受害呈黑褐色枯焦状,萎缩不能伸展。后期病部表面 Bacillus blight distribution and symptoms: Bacillus blight is a newly occurring disease in recent years, and is distributed in most tea areas. After the tea tree is infected, the growth of shoots is obviously blocked, which directly affects the yield and quality of spring tea. The main damage to a spring tea buds 1 to 3 leaves, leaves on the leaf tip or leaf margin yellowish or yellowish brown, irregular shape after expansion. Bud victim was black brown Kujiao-like, shrinking can not stretch. Late stage disease surface