2018—2022年河南漯河小地老虎的种群动态及虫源性质分析  

Analysis of population dynamics and insect source of Agrotis ipsilon in Luohe,Henan province,from 2018 to 2022

作　　者：于蕾 段云[2] 田金华 侯艳红 陈莉 刘迪 范志业 沈海龙 师兴凯 李世民 陈琦 Yu Lei;Duan Yun;Tian Jinhua;Hou Yanhong;Chen Li;Liu Di;Fan Zhiye;Shen Hailong;Shi Xingkai;Li Shimin;Chen Qi(Luohe Academy of Agricultural Sciences,National Agricultural Experimental Station for Plant Protection in Yancheng,Luohe Henan 462300,China;Institute of Plant Protection,Henan Academy of Agricultural Sciences,Zhengzhou Henan 450002,China;Zhengzhou Urban River Management Office,Zhengzhou Henan 450000,China)

机构地区：[1]漯河市农业科学院/国家农业科学植物保护郾城观测实验站,河南漯河462300 [2]河南省农业科学院植物保护研究所,河南郑州450002 [3]郑州市城区河道管理处,河南郑州450000

出　　处：《中国植保导刊》2024年第7期39-44,共6页China Plant Protection

基　　金：财政部和农业农村部:国家现代农业产业技术体系(CARS-03);河南省现代农业产业技术体系(HARS-22-01-Z4)。

摘　　要：为了解河南漯河小地老虎的种群动态及虫源性质,于2018—2022年利用虫情测报灯对其成虫种群进行系统监测,并对灯下雌蛾进行卵巢解剖。结果表明,小地老虎在漯河始见日在3月上中旬,终见日一般在10月中旬,1年可见4代成虫(越冬代、1代、2代和3代),个别年份仅有3个代次。以第1代发生数量最多,占当年蛾量的43.52%~62.39%;其次是第2代,占当年蛾量的27.38%~48.57%;越冬代和第3代分别占当年蛾量的3.75%~19.44%和0~0.94%。成虫发生主要有2个高峰期,分别在5月下旬至6月下旬(第1代)和7月中旬至8月中旬(第2代),峰期蛾量分别占全年诱蛾总量的48.35%和35.79%。小地老虎越冬代主要为异地迁入种群,少量为本地越冬虫源;第1代主要为异地迁入种群还是来自当地,年度间差异较大;第2代主要为异地迁入种群。本研究为漯河及全国小地老虎的预测预报和防治工作提供了理论基础。To understand the population dynamics and the source of each generation of Agrotis ipsilon,we monitored the adult population systematically using insect forecasting light in Luohe,Henan Province,from 2018 to 2022.Additionally.the ovaries of female moths under the light were dissected.The results showed that the initial and final sighting dates of A.ipsilon in Luohe occurred in early and mid-March and mid-October,respectively.Four generations of adults(the overwintering generation,the Ist generation,the 2nd generation,and the 3rd generation)were observed over a year,with three generations being observed in some years.The lst generation had the largest number of occurrences,accounting for 43.52%~62.39% of the annual population.The 2nd generation comprised 27.38%~48.57%of the total,while the overwintering generation and the 3rd generation accounted for 3.75%~19.44% and 0~0.94%,respectively.Two adult peaks were observed,accounting for 48.35% and 35.79% of the total,respectively.The first peak occurred from late May to late June,representing the Ist generation,while the second peak occurred from mid-July to mid-August,representing the 2nd generation.The overwintering generation of A.ipsilon was mainly an immigrant population,with a minor contribution from the local population.The source of the Ist generation varied significantly from year to year.The 2nd generation was primarily an immigrant population.This study provides a theoretical foundation for the prediction and control of A.ipsilon in Luohe and China.

关 键 词：小地老虎 种群动态 卵巢发育 虫源性质 

分 类 号：S433.82[农业科学—农业昆虫与害虫防治]