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5月以来南方大部出现了明显降水过程,较高的相对湿度和适宜的温度极其利于迁飞性害虫的迁入和发生发展。据全国农技中心预测,6～7月份,稻飞虱在华南、西南、江南南部稻区将达偏重至大发生,江南北部、长江中下游稻区虫口密度会增长较快。另据了解,水稻另一重要害虫稻纵卷叶螟在广西等地区发生严重,需要及时予以防治。
Since May, most of the southern part of the country has experienced obvious precipitation process. The higher relative humidity and suitable temperature are very beneficial to the migration and development of migratory pests. According to the National Agricultural Technology Center forecast, from June to July, planthopper in rice in South China, Southwest China and southern Jiangnan will reach to the maximum, the density of pest population in the northern and southern Yangtze River and Yangtze River will grow rapidly. It is also understood that another important pest of rice rice leafroller in Guangxi and other areas serious, need timely control.