我国北方运动场草坪德斯霉病害的初步观察

THE INVESTIGATION OF DRECHSLERA DISEASE OF SPORT TURF IN THE NORTHERN CHINA

首次报导了德斯霉病害(Drechslera spp)在我国北方草坪运动场的发生。对兰州七里河体育场及北京国家奥林匹克体育中心田径场的病原及影响发病的因素进行研究表明,兰州草坪病害的病原为早熟禾德斯霉(Drechslera Poae (Baudys) Shoem),北京的为干枯德斯霉(Drechslera Siccans (Drechs) Shoem)。夏季高温高湿是导致病害流行的主要因素之一,垂直刈剪和合理施用氮肥可降低该病的危害。

This paper first reported the Drechslera disease occuring on sport turf in the northern China. The re-sults of study on Qilihe sport turf in Lanzhou and the National Olympic Sports Centre turf in Beijing indicat-ed that the pathogen of turf disease is Drechslera poae (Baudys) Shoem in Lanzhou and Drechslera siccans(Drechs)Shoem in Beijing. High relative humidity is one of main factors causing disease epidemic. Vertical mowing and rational application of nitrogen fertilizer can reduce the disease damage.