摘要
１９９２年至１９９５年，对宁夏人工栽培的紫花苜蓿叶部病害种类、发生和分布情况进行了调查。结果表明，宁夏现发生花叶病、黑斑病、炭疽病、褐斑病、霜霉病、灰星病、锈病、斑枯病、轮纹病、轮斑病、霉斑病共１１种叶病，其中霉斑病（Ｃｅｒｃｏｓｐｏｒａｍｅｄｉｃａｇｉｎｉｓ）、炭疽病（Ｃｏｌｌｅｔｏｔｒｉｃｈｕｍｔｒｉｆｏｌｉ）、灰星病（Ｐｌｅｏｓｐｈａｅｒｕｌｉｎａｂｒｉｏｓｉａｎａ）和轮斑病（Ｓｔｅｍｐｈｙｌｉｕｍｂｏｔｒｙｏｓｕｍ）为宁夏病害新记录。在各种病害中花叶病、霜霉病、炭疽病和斑枯病危害重、分布广，应进行防治，锈病和褐斑病流行潜在的危险大，应予以重视并采取预防措施。
Eleven leaf diseases of alfalfa (Medicago sativa L.) were recorded and pathogens were identified during a field survey undertaken from 1992 to 1995 in Ningxia Hui Autonomous Region. They were Alfalfa Mosaic, Alternaria leaf spot, anthracnose, common leaf spot, downy mildew, Leptosphareulina leaf spot, rust, Septoria leaf spot, spring black stem and leaf spot, Stemphyllium leaf spot, and summer balck stem and leaf spot. Among them summer black stem and leaf spot (Cercospora medicaginis), anthracnose (Colletotrichum trifolii), Leptosphaerulina leaf spot (Leptosphaerulina briosiana) and Stemphyllium leaf spot (Stemphyllium, botryosum) were new disease records in Ningxia. Alfalfa Mosaic, downy mildew, anthracnose and Septoria leaf spot caused serious damage and widely distributed. They should be the important control targets. The epidemic potential of rust and common leaf spot was great and precautionary measures should be taken.
出处
《草业科学》
CAS
CSCD
北大核心
1997年第1期23-25,共3页
Pratacultural Science
