3种诱捕方式对河南漯河亚洲玉米螟的诱捕效果

Trapping Effects of Three Trapping Methods on Ostrinia furnacalis in Luohe of Henan Province

为探索农业主要害虫亚洲玉米螟Ostrinia furnacalis(Guenée)的有效监测方法,于2022年和2023年利用测报灯、探照灯和性诱剂诱捕器对河南漯河亚洲玉米螟田间种群进行了监测及种群动态分析。结果表明:测报灯、探照灯和性诱剂诱捕器均能诱捕到亚洲玉米螟成虫。2022年和2023年测报灯诱捕虫量分别为6767头和3854头,探照灯诱捕虫量分别为6019头和9666头,两种灯下亚洲玉米螟成虫种群消长动态均出现2个明显的高峰期,且均在5月中旬至6月上旬和8月上旬至9月中旬,其中,第1个高峰期虫量占当年诱虫总量的6.60%~26.60%;第2个高峰期诱虫数量较多,虫量占当年诱虫总量的64.22%~90.58%,该时期内均出现多个峰值,单日最高诱虫量出现在9月上旬。2023年1个性诱剂诱捕器诱捕虫量为252.67头,明显低于同期灯诱虫量,但在5月中旬至6月上旬可见明显的诱虫高峰。2023年3种诱捕方式下亚洲玉米螟的始见日均在4月中旬,性诱终见日(9月下旬)比灯诱终见日(10月中下旬)早。该研究结果可为亚洲玉米螟的预测预报和绿色防控提供参考。

In order to explore the effective monitoring method of the main agricultural pest Ostrinia furnacalis,the field population of Ostrinia furnacalis in Luohe of Henan Province was monitored and the population dynamics was analyzed by using the catchers with forecasting lamp,search light or sex attractant in 2022 and 2023.The results showed that the catchers with forecasting lamp,search light or sex attractant could all trap Ostrinia furnacalis adults.In 2022 and 2023,the number of pests trapped by the catchers with forecasting lamp was 6767 and 3854,respectively,and the number of pests trapped by the catchers with search light was 6019 and 9666,respectively.The population fluctuation dynamics of Ostrinia furnacalis adults under the two kinds of lights both showed two obvious peaks,which were both from the middle ten days of May to the first ten days of June and from the first ten days of August to the middle ten days of September.Among them,the number of pests in the first peak period accounted for 6.60%−26.60%of the total number of trapped pests in the year.The number of trapped pests in the second peak period was more,accounting for 64.22%−90.58%of the total number of trapped pests in the year.There were multiple peaks in this period,and the highest number of trapped pests per day appeared in the first ten days of September.In 2023,the number of pests trapped by the catcher with sex attractant was 252.67,which was significantly lower than that trapped by the catcher with light in the same period,but there was a significant peak of trapping pests from the middle ten days of May to the first ten days of June.In 2023,the beginning date of seeing Ostrinia furnacalis under the three trapping methods was in mid-April,and the end date of seeing Ostrinia furnacalis with sexual trapping(the last ten days of September)was earlier than that with light trapping(the middle and last ten days of October).The results of this study could provide reference for the prediction and green prevention and control of Ostrinia furnacalis.