甜菜黑腐病是我省河西走廊甜菜生长期发生的１种新病害，发病植株急剧萎蔫死亡，根部由根尾向上变黑腐烂。据调查，一般发病率２％～５％，个别严重地块高达２１％，且有逐年加重的趋势。因此识别和防治该病已成为当地生产上亟待解决的问题。１病害田间识别田间５月份可发现病 Beet black rot disease is a new disease occurred in the beet growth stage in Hexi Corridor in our province. The diseased plants wilted rapidly and wilted. Roots turned black rot from the root tail. According to the survey, the general incidence of 2% to 5%, individual block as high as 21%, and increasing year by year trend. Therefore, identifying and controlling the disease has become an urgent problem in local production. 1 disease field identification May be found in the field of disease