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今年小麦条锈病冬繁面积小、病情轻,早春病情发展缓慢,但4月初以来,随着气温稳定回升、降雨持续增多,湖北和西南地区东部病情迅速扩展,陕西关中、河南南部等黄淮地区南部陆续显症。截至4月21日,全国小麦条锈病发生面积达925.9万亩,涉及四川、云南、贵州、重庆、湖北、陕西、甘肃、河南8省(市)61市(地区)306个县(市、区);与3月31日相比,发生面积增加了1.8倍,见病县点数增加了37.2%,已进入春季流行盛期。
Since the beginning of April, with the steady rise of temperature and the continuous increase of rainfall, the condition of wheat stripe rust in eastern Hubei Province and the southwestern part of China expanded rapidly. The areas of Shaanxi, Guanzhong and southern Henan, such as Huanghuai region, Southern one after another show disease. As of April 21, the area of stripe rust of wheat hit 9.25 million hectares, involving 306 counties (cities and districts) in 61 cities (regions) in Sichuan, Yunnan, Guizhou, Chongqing, Hubei, Shaanxi, Gansu and Henan provinces ); Compared with March 31, the area of occurrence increased by 1.8 times, see the county points increased by 37.2%, has entered the peak of the spring epidemic.