摘要
全球性气候变化和本地耕作制度的改变给害虫发生带来极大影响,导致一些害虫种群和数量发生了明显变化,长期监测作物上害虫的发生动态对探索其演变规律和防治具有重要意义。本研究分析近10年玉米上两种重要害虫玉米螟和桃蛀螟在河南漯河的成虫种群动态,同时调查了玉米田间两种害虫幼虫的发生数量。结果表明,玉米螟和桃蛀螟在漯河地区常年发生3代,其中第2代蛾数量最高,分别占全年虫量的63.3%和79.3%,发生高峰期分别在8月上旬至9月中旬和8月中旬至9月中旬。桃蛀螟的年度发生量特别是第2代蛾的发生量呈增加趋势,2016—2021年第2代蛾发生量显著高于玉米螟。桃蛀螟幼虫发生量明显增加,2019—2021年发生量高于玉米螟。综上所述,近10年漯河地区玉米田桃蛀螟发生呈增加趋势,一些年份发生量已经超过玉米螟。
Changes in global climate and local tillage practice had brought about huge impacts on the occurrence of pests,resulting in significant changes in the population and quantities of some pests.Long-term monitoring of the occurrence dynamics of pests on crops is of great significance for exploring pest development and prevention.In this study,the population dynamics of adult Ostrinia furnacalis(Guenee)and Conogethes punctiferalis(Guenee),two important pests of corn,were analyzed over the last decade.The number of larvae of the two pests in corn fields was also investigated.The results showed that O.furnacalis and C.punctiferalis both had three generations per year in Luohe,and the number of the second generation was the highest,accounting for 63.3%and 79.3%of the annual population,respectively.The peak periods were from early August to mid-September and from mid-August to mid-September,respectively.The annual occurrence of C.punctiferalis,especially the quantities of the second-generation moths,showed an increasing trend.The trapping numbers of the second-generation moth of C.punctiferalis surpassed that of 0.furnacalis from 2016 to 2021.The occurrence of C.punctiferalis larvae increased significantly,and the occurrence from 2019 to 2021 was higher than that of O.furnacalis.In summary,the occurrence of C.punctiferalis increased significantly in the last decade and surpassed O.furnacalis in some years.
作者
侯艳红
杜梦园
陈琦
刘迪
王文豪
李雷雷
沈海龙
陈莉
范志业
李世民
黄建荣
Hou Yanhong;Du Mengyuan;Chen Qi;Liu Di;Wang Wenhao;Li Leilei;Shen Hailong;Chen Li;Fan Zhiye;Li Shimin;Huang Jianrong(Luohe Academy of Agricultural Sciences,National Agricultural Observing and Experimental Station for Plant Protection in Yancheng,Luohe Henan 462300,China;Institute of Plant Protection,Henan Academy of Agricultural Sciences,Entomological Radar Station Zero of Henan Province for Field Scientific Observation and Research,Zhengzhou Henan 450002,China)
出处
《中国植保导刊》
北大核心
2023年第7期39-43,共5页
China Plant Protection
基金
河南省重大科技专项(201300111500)
河南省现代农业产业技术体系(HARS-22-01-Z4)
财政部和农业农村部:国家现代农业产业技术体系(CARS-03)
河南省农业科学院基础性科研工作(JC014)
河南省农业科学院优秀青年基金(2020YQ09)
河南省农科院创新团队(2022TD14)。
关键词
玉米螟
桃蛀螟
玉米穗期
种群动态
漯河地区
Ostrinia furnacalis
Conogethes punctiferalis
ear stage of maize
population dynamic
Luohe area