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Issue:ISSN 2095-1353
           CN 11-6020/Q
Director:Chinese Academy of Sciences
Sponsored by:Chinese Society of Entomological;institute of zoology, chinese academy of sciences;
Address:Chaoyang District No. 1 Beichen West Road, No. 5 hospital,Beijing City,100101, China
Your Position :Home->Past Journals Catalog->2018年55 No.2

Using vertical looking radar (VLR) to observe the migratory behavior of the second generation Athetis lepigone moths in the southern part of north China in 2016
Author of the article:HUANG Jian-Rong1** HUANG Bo1 ZHU Jian2 FENG Hong-Qiang1***
Author's Workplace:1. Henan Key Laboratory of Crop Pest Control; IPM Key Laboratory in Southern Part of North China for Ministry of Agriculture; International Joint Research Laboratory for Crop Protection of Henan; Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China; 2. College of Plant Protection, Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
Key Words: Athetis lepigone moths, migratory behavior, radar observation

 [Objectives]  Monitoring the migratory behavior of Athetis lepigone is important for regional population monitoring and forecasting outbreaks of this pest. [Methods]  The migratory behavior of second generation A. lepigone moths was observed with vertical looking radar (VLR) and a vertical pointing searchlight trap reaching to high altitude in July 2016 at Yuanyang, Xinxiang, in the southern part of north China. The migration range of populations were analyzed using trajectory analysis software HYSPLIT. [Results]  Second generation A. lepigone moths were observed to take off at dusk (19:00) with peak density reached after two hours. Density decreased gradually as moths emigrated, but migration was sustained for about 12 h until 7:00 the following day. Moths generally ascended to a maximum altitude of 1 200 m above ground level (AGL) with the highest density recorded at 600-700 m AGL. In most cases, the mean longest flight time was 7.972 h per night, and the mean flying speed was 9.12 m/s. The main direction of travel was southeast and the mean maximum flight distance was 261.74 km per night. Combining wind field and migration pathways with radar data, the results indicate that the second generation of Athetis lepigone moths mainly migrate northward, and that most immigrants came from Luohe or Xuchang city, in the center of Henan province, with others coming from the vicinity of the radar observation site. [Conclusion]  This study elucidated the flight parameters and flight range of the second generation of Athetis lepigone moths in the southern part of north China in 2016.

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