小麦黑颖病Xanthomonas campestris pv.translucens(Jones et al.)Dye1989年在我市首次发生,发病面积10亩,发病品种是京双16号、丰抗8号。严重地块病叶率达80％,病情指数为44.4,产量损失14％。自1989年开始,利用了三年的时间对该病症状进行了系统观察记载,并对小麦各期症状进行了现场 Wheat black-eyed disease Xanthomonas campestris pv. Translucens (Jones et al.) Dye was first reported in 1989 in the country with a disease area of ​​10 mu. The disease types were Jing-double 16 and Feng-8. Sickness of the disease block leaf rate of 80%, the disease index was 44.4, the yield loss of 14%. Since 1989, the symptoms of the disease have been systematically observed and recorded for three years, and the symptoms of wheat have been on site