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实验证实镰刀菌(Fusariumsp.)是造成仙居县盾叶薯蓣枯萎病的病原。该菌是否为尖孢镰刀菌或是1个新的专化型变种,尚待进一步研究确认。调查发现此病的发生发展受温、湿度制约明显,田间湿度大易诱发病害发生;长期阴雨,受害严重。试验表明,播前采用甲基托布津或适乐时种衣剂浸种消毒可阻止病菌的初侵染,大田发病后及时对薯蔓基部用多菌灵500倍液进行浇灌或喷淋等综防措施能有效控制病害发生和蔓延。
Experiments confirmed that Fusarium sp. (Fusariumsp.) Is the cause of the disease in Xianju County Dioscorea nipponica wilt. Whether the bacteria Fusarium oxysporum or a new specialization variant, pending further study confirmed. Survey found that the occurrence of the disease by the temperature and humidity constraints obvious, easy to induce disease in the field humidity; long-term overcast, serious damage. Experiments show that pre-sowing with thiophanate-methyl or selenium seed coating soaking disinfectant can prevent the initial infection of bacteria, the field immediately after the onset of tuber base with carbendazim 500 times for irrigation or spray and other comprehensive prevention Measures can effectively control the occurrence and spread of diseases.