2015年-2019年河南原阳黏虫和劳氏黏虫的种群动态

Population dynamics of Mythimna separata and M.loreyi in Yuanyang,Henan province,during 2015-2019

为了解黏虫和劳氏黏虫在河南原阳的发生情况,本研究利用佳多虫情测报灯对2015年-2019年两种害虫成虫的种群动态进行了监测,并对两者的发生动态进行了比较分析。结果表明,2015年-2019年间在河南原阳监测的黏虫和劳氏黏虫成虫均发生4代。两种成虫在原阳的发生规律存在明显差异,其中,黏虫以第一代为主,占全年总诱虫量的55.4%~93.6%,主要发生期在5月下旬至6月上旬;劳氏黏虫以第三代为主,占全年总诱虫量的54.4%~87.8%,主要发生期在9月下旬至10月上旬。本研究为河南省原阳地区黏虫和劳氏黏虫的预测预报和防控提供了参考。

In order to understand the occurrence dynamics of Mythimna separata and M.loreyi in Yuanyang county,Henan province,population dynamics of adults from 2015 to 2019 was systematically monitored using Jiaduo monitoring lamp.The results showed that the adults of M.separata and M.loreyi were monitored in Yuanyang county from 2015 to 2019,and each had four generations in one year.There were significant differences in the occurrence regularity of the two species.Among which,the first generation of M.separata was dominant,which accounted for 55.4%-93.6%of the total number.The main occurrence period of M.separata was from late May to early June.The third generation of M.loreyi was dominant,which accounted for 54.4%-87.8%of the total number.The main occurrence period of M.loreyi was from late September to early October.This study provides a reference for the prediction and control of armyworm in Yuanyang county,Henan province.