摘要
草地贪夜蛾Spodoptera frugiperda J E Smmith、黏虫Mythimna separate Walker和稻纵卷叶螟Cnaphalocrocis medinalis Guenee是威胁我国粮食生产安全的重大迁飞性害虫,对当地粮食作物的产量和品质造成较大影响。明确3种重大迁飞性害虫在广西沿海地区的种群动态,有助于揭示其在我国的迁飞规律,为当地乃至全国的监测预警及防控提供科学依据。研究于2023年9月至2024年5月在广西东兴市利用高空测报灯对3种重大迁飞性害虫进行诱集,并对3种害虫的发生动态进行分析。结果显示:高空测报灯下,黏虫和稻纵卷叶螟的诱集量远高于草地贪夜蛾,虫量发生季节性差异明显,大部分虫量诱集于春季的3—5月;稻纵卷叶螟高空测报灯下出现3次高峰,分别为9月中旬、4月上旬及5月上旬,其中5月上旬诱虫量最高;黏虫高峰期出现在3月初至3月中旬,峰值呈现双峰型,高峰日出现在3月17日(1027头);草地贪夜蛾虽在3月下旬至4月下旬出现2个高峰,但峰值不高。总体上,3种迁飞性害虫的种群发生量差异较大,草地贪夜蛾的诱集量最低,迁飞高峰期集中于春季,但高峰期出现时间错开,黏虫最早(3月),其次为稻纵卷叶螟(4月),草地贪夜蛾最晚(5月),相关部门可根据害虫的种群动态,在3种害虫相应的高发期进行重点监测与防控。
Spodoptera frugiperda J E Smmith,Mythimna separate Walker,and Cnaphalocrocis medinalis Guenee are major transient pests that threaten food production security in China and have a good impact on the yield and quality of local food crops.Clarifying the population dynamics of three major migratory pests in the coastal areas of Guangxi is helpful for reveal-ing their migration and flight rules in China.It provides a scientific basis for local and even national monitoring,early warning,and control.In this study,three major migratory pests were induced by searchlight traps and reporting lamps in Dongxing City,Guangxi Province,from September 2023 to May 2024,and the occurrence dynamics of the three pests were analyzed.The results showed that the lure amount of M.separate and C.medinalis was much higher than that of S.frugiperda.The seasonal difference in the lure amount was distinct,and most of the lure amount was from March to May in spring.There were three peaks of the C.medinalis under the searchlight traps,and three peaks occurred in mid-September,early April,and early May,respectively,with the highest insect attractance in early May.The peak of M.separate appeared from early March to middle March,and the peak was bimodal,and the peak sunrise appeared on March 17(1027 head).Two peaks of S.frugiperda ap-peared in late March to late April,but the peak value was not high.In general,the population occurrence amount of the three migratory pests was very different.The lure amount of Spodoptera frugiperda was the lowest.The migration peak was con-centrated in spring,but the peak time was staggered,with the Mythimna separate being the earliest(March),followed by the Cnaphalocrocis medinalis(April)and the Spodoptera frugiperda being the latest(May).Monitoring and control should fo-cus on the corresponding high occurrence period of the three pests.
作者
覃江梅
宋春茶
成美华
陈红松
蔡晓燕
覃武
QIN Jiangmei;SONG Chuncha;CHENG Meihua;CHEN Hongsong;CAI Xiaoyan;QIN Wu(Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests/Plant Protection Research Institute,Guangxi Academy of Agricultural Sciences,Nanning,Guangxi 530007,China;Plant Protection Station,Agriculture and Rural Affairs Bureau of Bama Yao Autonomous County,Bama,Guangxi 547500,China;Agriculture,Rural Affairs and Water Resources Bureau of Dongxing City,Dongxing,Guangxi 538100,China)
出处
《热带农业科学》
2025年第7期68-73,共6页
Chinese Journal of Tropical Agriculture
基金
国家重点研发计划(No.2021YFD1400702)
粤桂联合基金项目(No.2022GXNSFDA080003)
广西农业科学院基本科研业务专项资助项目(No.桂农科2021YT076)。
关键词
草地贪夜蛾
黏虫
稻纵卷叶螟
迁飞性害虫
种群动态
高空测报灯
Spodoptera frugiperda J E Smmith
Mythimna separateWalker
Cnaphalocrocis medinalis Guenee
migratory pests
population dynamics
searchlight-trap
