黑麦草冠锈病的发生发展规律和防治技术研究  

Studies on the Regularity of Occurrence and Development of Ryegrass Crown Rust(Puccinia coronata Corda) and Its Control Techniques

作　　者：李雪艳 吴金亮 刘红刚 刘建芳 胡百选 胡作栋 

机构地区：[1]西安市园林研究所,西安710065 [2]陕西省植保总站,西安710003 [3]西安旭邦园林绿化公司,西安710038

出　　处：《西北农业学报》2004年第2期56-59,共4页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：西安市科技计划项目(农业攻关200116)资助。

摘　　要：黑麦草冠锈病是西安市禾草草坪上的重要病害,主要危害多花黑麦草,也危害早熟禾和剪股颖。3月上旬禾草返青后即开始发病,6～10月为发病最严重的时期,12月中旬以后越冬。机械剪草和喷灌是造成该病严重发生和流行的重要因素。通过试验,采用农业防治(减少剪草次数和喷灌次数)和化学防治(喷百理通、三唑酮、腈菌唑等农药)等项技术措施,可有效地控制该病的蔓延和危害。以上技术措施已在36hm2禾草草坪上连续应用两年,防病效果显著。Ryegrass crown rust,caused by Puccinia coronata Corda ,is an important disease on the grminaceous lawn in Xi′an city. It mainly damages Lolium multiflorum Lam. , it also damages Poa annua L. and Agrostis mutsumurae Hack.It begins to infect the lawn in the first ten days of March when the graminaceous grass turns to green. From June to October is the most serious period of disease development. After the second ten days of December, it begins to overwinter. Mechanical mowing and sprinkling irrigation are the main factors inducing the serious disease occurrence and epidemic. Through experiment, we found that cultural practices(reduce the mechanical mowing and sprinkling irrigation times) and chemical control(spray fungicides, such as Bayleton,Triadimefon, Myclobutanil et al) can effectively control its development and damage. Those techniques were utilized on 36 hm^2 graminaceous lawn in the continuous two years, and the effect is significant.

关 键 词：黑麦草 冠锈病 发生规律 防治 草坪草 

分 类 号：S436.88[农业科学—农业昆虫与害虫防治]