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河北省2001年小麦纹枯病前期发展快,发生重,后期流行受抑制。多点调查分析表明,气候因素对其发生流行影响很大。冬季降雪量大,春季气温回升早,有倒春寒,有利其发生发展,长期干旱则抑制其流行。
Rapid development of wheat sheath blight in Hebei Province in early 2001, the occurrence of heavy, post-epidemic suppressed. Multi-point analysis shows that climate factors have a great impact on its occurrence. In winter, the amount of snowfall is large, and the early spring temperatures rise early in spring, which favors their occurrence and development. Long-term droughts suppress their prevalence.