全国农业技术推广服务中心近日称,据黄淮海夏玉米区病虫测报网监测,今年二点委夜蛾一代成虫发生量较大,田间生境和未来气候条件有利,预计今年二点委夜蛾在黄淮海夏玉米主产区总体偏重发生,河北南部、山东南部和西南部地区可达大发生;全国发生面积为3000万亩,幼虫为害高峰为6月下旬至7月上旬。大部地区成虫量高于前3年,部分地区高于2012年。安徽、江苏、河南、山西、山东、河 National Agricultural Technology Extension Service Center recently said that according to Huang Huai Hai summer corn pest detection network monitoring this year, two members of the third generation of the large number of adult worms generation of moths, the field habitat and future favorable climatic conditions is expected this year, The main producing areas of Huang-Huai-Hai summer maize generally occur with emphasis, with large reachable areas occurring in southern Hebei, southern Shandong and southwestern areas. An area of ​​30 million mu occurs throughout the country with the highest larval damage occurring from late June to early July. The adult population in most areas was higher than in the previous three years and in some areas higher than in 2012. Anhui, Jiangsu, Henan, Shanxi, Shandong, River