猪瘟(Classical swine fever,CSF)是由猪瘟病毒(Classical swine fever virus,CSFV)引起的一种以高热、出血、死亡率高为特征的高度接触性传染病,是世界粮农组织和各国政府严
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烟草黑胫病(Tobacco Black Shank)是一种由烟草黑胫病菌[Phytophthora parasitica var.nicotianae(Breda de Hean)Tuker]引起的烟草病害,破坏性极强,对所有栽培烟草具有世界范围内的
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