一、小麦赤霉病发生流行情况 1.大田发病情况我省去年11月平均气温比历年偏低2—3度,11月中旬全省平均气温为5—7度,比历年偏低6—8度,霜雪较往年提早20—40天,从12月下旬至2月份,阴雨冰雪连续不断,遇上了历史上少有的严寒天气,麦子冬季生长缓慢。但3月份晴天较多,气温明显升高,三旬平均气温在12℃以上,麦子发育较快,早熟品种在3月底抽穗,4月上旬 First, the prevalence of wheat head blight 1 field incidence in November last year, the average temperature in our province lower than the calendar year 2-3 degrees in mid-November the average temperature of 5-7 degrees in the province, lower than the calendar year 6-8 Degree, Frost and Snow 20-40 days earlier than in previous years, from late December to February, the rainy and rainy continuous, met the history of the rare cold weather, winter wheat growth is slow. However, more sunny days in March, the temperature increased significantly, the average temperature of more than 12 ℃ above, wheat developed rapidly, early varieties at the end of March heading, early April