By field investigated and indoor isolation identification, it was showed that Radix rehmanniae root rot was caused mainly caused by Fusarium Wilt, Sclerotium rot ( Sclerotium rolfsii), Rhizopus, Phytophthora disease, etc. 根据田间调查,对地黄根腐病的表症诊断和室内病原菌分离鉴定,明确了地黄根腐病的主要种类为枯萎病、白绢病、立枯病、疫病、枯腐病、黑色根腐病。
The results show that the wintering sclerotium may become primary infection source of tobacco root and stem rot in the tobacco field of tobacoo-rice rotation. 3. 这一结果表明,在烟稻轮作的烟田水稻纹枯病的越冬菌核可能成为烟草根茎腐烂病的初侵染源。