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2010年对沈阳地区稻曲病病菌孢子捕捉发现,稻曲病病菌分生孢子始见于7月下旬,飞散期为7～9月。其中8月为飞散盛期,9月初进入消退期。自捕捉到孢子20 d后田间开始陆续发病。稻曲病分生孢子飞散动态与积温呈极显著正相关(r=0.822,Sig=0.007<0.01),与积累降雨量呈显著性正相关(r=0.774,Sig=0.014<0.05),与田间病情扩散动态呈显著正相关。
In 2010, the spore trapping of smut in smut in Shenyang was found. The conidia of smut of smut was first seen in late July and scattered from July to September. Among them, the flying period was in August and entered into the retreat period in early September. Since the capture of spores 20 days after the field began to gradually onset. There was a significant positive correlation (r = 0.822, Sig = 0.007 <0.01) between the distribution of conidial flying and the accumulation of temperature in False smut and the positive correlation with accumulation of rainfall (r = 0.774, Sig = 0.014 < The spread of disease was significantly and positively correlated.