树桩盆景由于浇水或淋雨过多,盆底孔口阻塞,易发生腐烂病。该病多发生在根颈部皮层,发病时在根颈部出现不定形病斑,皮层腐烂呈褐色,常有类似酒糟气味,并流出胶液,严重时可使根颈部皮层全部腐烂坏死,以致全株死亡。高温多雨、多湿、盆土粘重、盆孔阻塞造成排水不良或根颈部有伤口引起病菌侵入等都易于病菌传播蔓延。为此,笔者采用以下四种土法防治,不仅简单易行,效果良好,而且又不致造成环境污染。方法如下: Stump bonsai as excessive watering or rain, pelvic orifice obstruction, prone to rot disease. The disease occurs in the root cortex, the incidence of irregular shaped lesions in the root of the neck, cortical decay brown, often similar to the smell of distillers grains, and out of the glue, can cause severe necrosis of the root neck cortex decay, The whole plant died. Hot and humid, hot and humid, pentu heavy sticks, pelvic obstruction caused by poor drainage or root neck wound caused bacteria invade and so easy to spread and spread of germs. To this end, I use the following four kinds of soil prevention and control, not only simple and effective, good results, but without causing environmental pollution. Methods as below: