全国农业技术推广服务中心近日表示,当前二化螟在江南南部陆续进入卵孵盛期,江南北部陆续羽化。据预测,一代二化螟在江南稻区呈大发生态势。一、田间基数高据各地调查,江南稻区二化螟冬后田间基数明显偏高。其中,江西每亩虫量平均为12056头,是去年同期的 The National Agricultural Technology Extension Service Center recently said that at present, two rice stem borers have entered the peak period of egg hatching in the southern part of southern South China and one after another in the northern part of Jiangnan. It is predicted that a generation of stem borer showed a big trend in southern rice area. First, the high base of the field According to surveys around the region, the rice stem borer in the southern region of the field after the winter was significantly higher base. Among them, the average amount of pests per mu in Jiangxi Province was 12,056, which was the same period of last year