摘要
1992年～1994年，笔者对“水芹斑枯病”进行了系统观测、调查及试验，结果表明：病菌以菌丝体在种株或病残体上越冬。温度在20℃～18℃间，伴有雨湿时田间病害最甚。采取种苗处理、合理密植、加强田管、注意选留种株是防治本病的有效农业防治措施；化学防治以77％可杀得1000倍液喷雾的效果最佳。
From 1992 to 1994, the auther had made systematic observations, investigations and experiments on spot Blight of watercress. The results show that hypha body of pathogentic bacteria survive the winter on seed plant or infected plant, the field plant disease will be most serious when the temperature is between 18℃ and 20℃ and it is accompanied by rain water. The effection agricultural prevention and cure way to this disease is watercress seedling treatment, rational close planting, strengthening field managment and paying attention to seed selection and reservation. The hest chemicl prevention and cure method is spraying 77 % Cosade which has been diluted by 100000 %
出处
《孝感师专学报》
1997年第1期46-48,共3页
Journal of Xiaogan University
关键词
水芹
斑枯病
防治
发病
病原
watercress spot blight deseas occur prevention and cure
