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药用杭菊花(Chrysanthemum sinenses)_是一种清凉解渴的饮料,也是一味重要的中药材。具有疏风热、平肝阳、解毒、降火和明目作用。浙江省桐乡县栽培杭菊花已有300多年历史,种植面积占全省90%左右。干菊花畅销全国,远销东南亚各地。可近年来杭菊花受到病毒病危害,病株生长细弱,菊花数量减少、花型小、严重减产。重病区,发病率高达54～62％。病株症状:主要特征是叶片呈现褪绿斑驳花叶、叶质变厚稍硬;一般病株上部叶片
Medicinal Chrysanthemum sinenses_ is a cool, thirst-quenching drink that is also important to Chinese herbal medicines. With Shufeng fever, Pingyang Yang, detoxification, fire and eyesight effect. Tongxiang County, Zhejiang Province, Hangzhou-chrysanthemum cultivation has been 300 years of history, the acreage accounts for about 90% of the province. Chrysanthemum best-selling nationwide, exported to all over Southeast Asia. In recent years, Hangzhou Chrysanthemum virus damage by the virus, sick strains grow thin, reduce the number of chrysanthemums, flowers small, serious cut. Severe ward, the incidence rate as high as 54 ~ 62%. Sick strain symptoms: the main feature is the leaves appear chlorotic mottled mosaic leaves, thicker and thicker leaves hard; general plant upper leaves