冬枣黑斑病病原菌的鉴定

Identification of pathogenic fungus of black patch in“Dongzao”jujuba

报道了山东境内近年来发生的1种新病害冬枣黑斑病。从16批次139个冬枣病果样品中分离获得321个分离物,经筛选、纯化、回接试验,依其培养性状和形态特征,冬枣黑斑病的病原菌鉴定为细极链格孢 Alternaria tenuissima(Fr.)Wiltshire 。

A new disease“Dongzao” jujuba black patch in Shandong Province was reported.321 isolates from 139 infected“Dongzao” jujuba samples among 16 batches were selected,purifyied and re-inoculatied.The pathogenic fungus was identified as Alternaria tenuissima(Fr.) Wiltshire according to its cultural and morphological character.