当前正值小麦产量形成的关键时期,受异常气候影响,今年小麦病虫害发生时间早、面积大、流行快,特别是小麦赤霉病、条锈病、纹枯病和小麦蚜虫、红蜘蛛、吸浆虫“三病三虫”呈加重发生趋势,与西南西北部分地区持续发展的旱情一起,对夏粮生产形成威 At present, the critical period of wheat yield formation is affected by the abnormal climate. This year wheat diseases and insect pests occur earlier, with larger area and rapid popularization, especially wheat scab, stripe rust, sheath blight and wheat aphid, spider mite, “Three disease and three insects” is aggravating the trend of occurrence, and part of the continuous development of northwestern and northwestern parts of the drought together, the formation of summer grain production Viagra