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甜菜丛根病是以甜菜多粘菌(Poiymyxabetae)为介体,甜菜坏死黄脉病毒(BNYVV)为毒源的一种病毒病。甜菜感病后叶丛症状有三种类型:(1)退绿黄化型;(2)焦枯型,包括黑色焦枯和黄褐焦枯;(3)叶脉黄化、坏死型。根部播种30天后,根体开始变细,变褐,40～60天后侧根坏死脱落,70天后坏死脱落的根茬上开始丛生大量的次生侧根,后期形状如“胡子”。病毒粒子呈棒状。我国内蒙古甜菜区1979年首次发现。我省1986年于武威市中坝乡花寨村首次发现。近几年来,各地调查证实,河西走廊甜菜产区均有发生。1988年在武
Beet root disease is a virus disease caused by the poisonous source of beet necrotic yellow vein virus (BNYVV) mediated by Poiymyxabetae. There are three types of symptoms of leafhopper after being infected with beet: (1) greening yellowing; (2) scorching, including black scorching and yellow brown scorching; (3) yellowing and necrosis of veins. After 30 days of root sowing, the root began to thin and brown. After 40 to 60 days, the lateral root necrosis came off. A large amount of secondary lateral roots began to emerge on the stubble after 70 days of necrosis. Virus particles were sticky. Inner Mongolia beet region in China for the first time found in 1979. Our province was first discovered in Huazhai Village, Zhongba Township, Wuwei City in 1986. In recent years, surveys have confirmed around the Hexi Corridor beet producing areas have occurred. In 1988 in the military