今年东北春玉米主产区玉米螟平均百秆活虫数偏高,全国春玉米种植面积较大、长势良好,6月份东北南部、华北北部等地区降水较常年同期偏多,预计一代玉米螟总体偏重发生,程度重于上年。其中,黑龙江大发生,吉林、辽宁、安徽西北部偏重发生,华北、黄淮大部和新疆中等发 This year the main producing areas of northeast spring corn borer average number of 100 live corn borers were high, the national spring corn planted larger, good growth in June in northern South China, northern North China and other regions more than normal precipitation over the same period, Emphasis on occurrence, degree heavier than the previous year. Among them, the occurrence of Heilongjiang Province, Jilin, Liaoning, Anhui Province, northwest of emphasis, North China, Huanghuai most of Xinjiang and Xinjiang