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经症状观察和分离鉴定 ,确定了当地魔芋发生的病害为魔芋软腐病 ,其病原菌为 Erwinia Carotovora(Jones) Holland,Erwinia aroideae(Towsend) Holland。研究结果表明 :气温较高的 8月份是魔芋软腐病的暴发期 ,其发生与高温、强光照有关 ,种芋带菌、流水、病健株接触是该病害的主要传播方式。经试验 2 5 0 mg/kg农用链霉素液浸种 5 h出苗率最高 ,达 64.1 7% ,较 CK有极显著差异。生长期用药剂喷、灌防效不明显。因此 ,防治魔芋软腐病可用药剂处理种芋再结合栽培措施等进行综合防治
The symptom observation and isolation and identification identified the local konjac disease occurred as konjac soft rot, the pathogen Erwinia Carotovora (Jones) Holland, Erwinia aroideae (Towsend) Holland. The results showed that the higher temperature in August was the outbreak of konjac soft rot. Its occurrence was related to the high temperature and strong light. The contact of the konjac bacteria, water and diseased plants was the main mode of transmission. After the test 250 mg / kg of agricultural streptomycin soaking seedlings 5 h highest rate of 64.1 7%, compared with CK were extremely significant differences. Spraying agent spraying, irrigation control effect is not obvious. Therefore, the prevention and treatment of konjac soft rot can be used to deal with species of taro cultivation measures combined with comprehensive prevention and treatment