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2001年以来,小麦条锈病在商洛市重发流行的频次较20世纪80年代至90年代末显著增多,给当地小麦生产带来严重威胁。通过对商洛市不同时期、不同气候区域小麦条锈病的发生规律和流行特点的总结与分析,提出基于气象分析在小麦条锈病的中、长期预报中存在局限性,要提高数值化预报准确率,需要对病害调查数据进行统一标准化,达到调查数据根据需要在不同流行区域之间、不同预报水平上进行统计分析。针对商洛市不同时期病害的发生特点,提出越冬及早春菌源扩散区在测报防治中地位突出,在准确掌握越冬及早春菌源扩散区的基础上,开展春季关口前移防治。
Since 2001, the frequency of wheat stripe rust relapse in Shangluo City has increased significantly from the 1980s to the late 1990s, posing a serious threat to the local wheat production. Based on the summary and analysis of the occurrence and epidemic characteristics of wheat stripe rust in different periods and different climatic regions in Shangluo City, the paper proposed that there are some limitations in the medium and long-term prediction of stripe rust in wheat based on meteorological analysis, and it is necessary to improve the accuracy of numerical prediction, It is necessary to standardize the disease survey data to achieve the statistical analysis of the survey data as needed between different prevailing regions and different forecast levels. According to the occurrence characteristics of diseases in different periods in Shangluo city, we put forward that the overwintering and early spring mycelial diffusion zones are prominent in the prevention and control of the meteorological reports. On the basis of accurately grasping the diffusion zones of the overwintering and early spring mycorrhizae, we carry out the spring gate prevention and treatment.