一、玉米病虫害1.玉米螟一代为中度偏重发生。二代中度偏轻,三代中度偏重发生。累计发生面积将达90380万平方米次以上。2.二点委夜蛾轻发生,二代黏虫为害中度偏轻发生。3.玉米蚜虫中度发生。发生面积33350万平方米左右。4.玉米蓟马中度偏重发生,发生面积33350万平方米,为害盛期在6月中旬至7月上旬。5.玉米粗缩病毒病中度流行,流行面积1334万平方米,流行盛期在6月中至7月上旬。发病田块主要集中在春播(套播)玉米田。 First, corn pests 1. Corn borer generation is moderately important occurrence. Moderate second-generation light, three generations of moderate emphasis occurred. The cumulative area will reach 903,800,000 square meters times. 2. Two members of the night light moth occurrence, the second generation of insects moderate damage occurs moderately light. 3 corn aphid moderate occurrence. An area of ​​333.5 million square meters occurred. 4. Thrips moderate emphasis on occurrence of thrips, the occurrence of an area of ​​333500000 square meters, damage peak in mid-June to early July. 5. Corn coarse-grained virus disease moderate prevalence of endemic area of ​​13.34 million square meters, popular peak in mid-June to early July. The disease plots are mainly concentrated in the spring sowing (set sowing) corn fields.