全国农业技术推广服务中心3月4日称,目前小麦生育期,西南麦区为拔节至孕穗期(云南处于孕穗至扬花期),长江中下游为分蘖期,黄淮为返青期,华北和西北麦区仍为越冬期。近期随着气温的回升,小麦病虫害由南至北陆续发生,条锈病等病虫在西南和汉水流域进入扩散危害期。截至3月3日,全国小麦主要病虫害发生4985.1万亩,同比上年减少35.1%,比2014年略增2.1%。 National agricultural extension service center on March 4 said that the current wheat growth period, the southwest wheat area for the jointing and booting stage (Yunnan in the booting to flowering stage), the middle and lower reaches of the Yangtze River is tillering stage, Huanghuai greening, North and Northwest The wheat area is still overwintering. With the recent temperature rise, pests and diseases of wheat continue to occur from south to north, stripe rust and other pests in the southwest and Han River basin into the diffusion hazard period. As of March 3, 49.851 million mu of major pests and diseases of wheat in the country occurred, down 35.1% over the previous year and a slight increase of 2.1% over 2014.