Accumulated temperature were many before the winter and the sowing seeds-jointing stage,while the temperature was low around the jointing,which led the banded sclerotial blight disease index to high.

• 生产上要选用抗、耐病品种,适期播种或适期晚播,推广精量半精量播种,控制群体密度,增强个体自身的抗病力;