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浙江省舟山地区近年来发现有水仙基腐病发生为害。据收获时调查,发病率为26—82％。该病主要为害水仙鳞茎基盘及根部,引起褐色软腐,进而使植株枯萎致死。病原菌经鉴定为水仙尖镰孢Fusarium oxysprum f.sp.narcissi Shy.and Hans.舟山地区4月下旬以前旬平均气温低于19℃,田间发病率仅0.6％左右,5月份至收获期,随温度升高病情发展很快。防治试验表明,播种前用福尔马林120倍液浸种3.5小时,防效75.8％。
Zhoushan in Zhejiang Province in recent years found that there are narcissus-based rot disease. According to the survey at harvest, the incidence was 26-82%. The disease is mainly harmful narcissus bulb base and roots, causing brown soft rot, leaving the plant withered death. The pathogen was identified as Fusarium oxysprum f.sp.narcissi Shy.and Hans. The average temperature in late April in Zhoushan was lower than 19 ℃ and the incidence in the field was only 0.6%. From May to harvest, Increase the rapid development of the disease. Control tests showed that, before sowing 120 times soaking formalin for 3.5 hours, control effect 75.8%.