花生青枯病是花生的主要病害之一,感病的植株最初顶叶失水软垂,接着全株叶片萎蔫下垂,但凋萎叶片还能保持青绿色。剖开植株茎部,可见靠近地面部分的维管束已经变成褐色。用手挤压,在切口处有污白色的菌液流出,拔起病株,根部已经腐烂,变黑褐色。此病在我区普遍发生,一般发病率在5～10%,重的达50%以上,导致减产。 Peanut wilt is one of the main peanut diseases. The diseased plants initially lose water and soft folds, and then the whole plant leaves wilting, but the wilting leaves can still remain turquoise. Cut the plant stem, showing that the vascular bundle near the ground has turned brown. Extruded by hand, the incision at the dirty white liquid outflow, pulling the diseased plant, the roots have decayed, dark brown. The disease occurs in our district, the general incidence of 5 to 10%, weighing up to 50% or more, resulting in reduced production.