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小麦白粉病菌的无性世代可在夏季冷凉地区的自生麦苗或夏播小麦上越夏,这一点国内外已有许多文章报道。我们的调查亦如此。凡最热月均温在25℃以下的地区,夏季田间病苗是常见的。低热地区在局部适
Asexual wheat powdery mildew generation in cold summer areas of summer wheat or summer sowing summer, which has many reports at home and abroad. Our survey is also true. Where the hottest month in 25 ℃ below the average temperature in summer field sickness is common. Low heat in the local fitness