山嵛菜根腐病又称软腐病,是山嵛菜栽培中危害最大的病害,大发生时常造成毁灭性灾害. 一、病症 危害根和根茎,病斑最初呈水浸状,后变浅褐色至深褐色,很快软化腐烂.根和根茎部软化腐败时产生白色乳状物,放出恶臭味,最后整株萎焉致死. 二、病原 该病由欧氏杆菌属细菌引起,菌体短 Beech root rot, also known as soft rot disease, is the most harmful diseases in the cultivation of Beverraceae, often causing devastating disastrous disasters. First, the disease root and rhizome damage, the lesion was initially flooded, after the light brown To dark brown, and soon to soften the decay.When the root and rhizome softening of the white milk-like substance generated when the release of foul smell, and finally the whole plant wilted Yan died. Second, the pathogen The disease caused by the bacteria of the genus Ouhai bacteria, bacteria short