近期,伴随大范围降水过程,全国两迁害虫呈加重发生趋势。华南、西南中南部和江南稻区稻飞虱集中迁入,并波及长江流域,部分稻区日单灯诱虫万头以上,高于去年同期;田间虫口密度急剧增加;华南、西南东部和江南大部稻区出现稻纵卷叶螟迁入的突增峰,部分稻区田间蛾量明。 Recently, along with the large-scale precipitation process, pests in the two cities in the country have been increasing. South China, south-central south-south and southern rice planthoppers concentratedly moved in, and spread to the Yangtze River valley, part of the rice sun trap light trapped more than 10,000, higher than the same period last year; field population sharply increased insect population; South China, eastern Southwest China In most of the rice areas, the sudden increase of the rice leaf roller was observed, and some moths were found in the rice fields.