近期,黑龙江、吉林和辽宁等地局部出现了稻瘟病叶瘟急性病斑和发病中心,重病田病株率达到50%左右。8月11日,农业部办公厅下发紧急通知,要求切实加强稻瘟病的防控工作,努力夺取秋粮丰收。据介绍,自7月下旬以来,我国北方稻区受持续高温、阴雨寡照天气以及台风降雨等因素的影响,田间湿度增大,利于水稻稻瘟病的侵染和流行。 Recently, Heilongjiang, Jilin and Liaoning and other places appeared in parts of the blast of acute blast disease and disease centers, severe disease rate of about 50% of diseased plants. On August 11, the general office of the Ministry of Agriculture issued an urgent circular calling for the practical strengthening of the prevention and control of rice blast and efforts to seize the autumn harvest. According to reports, since late July, rice fields in northern China have been affected by factors such as sustained high temperatures, rainy weather and typhoon rainfall, and increased humidity in the fields, which is conducive to the infection and prevalence of rice blast.