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砂仁叶斑病及其防治(简报)
何有乾;
广西农学院
摘要
:
砂仁叶斑病通过柯克氏原则(Koch’s postulate)进行鉴定,确认病原为梨孢霉菌(Piricularia sp )。根据病害流行调查,传播途径主要有三:(1)种苗带病、(2)气传、(3)人畜传播。药剂防治中以甲基托布津500~1000倍液喷洒叶面的效果最好,病斑控制率可达84.4~99.3%。
关键词
:
砂仁
叶斑病(Piricularia sp)
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