摘要
2003年稻纵卷叶螟在江苏稻区特大发生。在总结其发生特点的基础上,分析特大发生的原因,主要与成虫迁入虫量大、气候及苗情适宜、残留虫量基数高、自然控制作用弱等因素有关。并根据各地防治工作实践,提出要加强监测,准确把握防治适期,科学用药等治理措施。
s: The outbreak of Cnaphalocrocis medinalis appeared in rice fields in Jiangsu province in 2003. The causes were analyzed based on the summation of th e occurrence characteristics of Cnaphalocrocis medinalis. Results showed that th e outbreaks were correlated with some factors such as large amounts of immigrant adults and survival insects, suitable climate and seedlings and the weakness of natural control. According to the experiences in the control of this pest in va rious regions, the following measures were brought forward: strengthening pest m onitoring, accurately seizing the right control time, and applying pesticides sc ientifically.
出处
《中国植保导刊》
2004年第2期11-14,共4页
China Plant Protection
