Flight Performance of Mamestra brassicae (Lepidoptera: Noctuidae) Under Different Biotic and Abiotic Conditions

文献类型： 外文期刊

第一作者： Guo, Jiang-Long

作者： Guo, Jiang-Long;Guo, Jiang-Long;Li, Xiao-Kang;Shen, Xiu-Jing;Wang, Meng-Lun;Wu, Kong-Ming

作者机构：

关键词： Mamestra brassicae; flight mill; flight ability; stroboscope; wingbeat frequency

期刊名称：JOURNAL OF INSECT SCIENCE （ 影响因子：1.857； 五年影响因子：1.904 ）

ISSN：

年卷期： 2020 年 20 卷 1 期

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收录情况： SCI

摘要： Mamestra brassicae L. is an important, regionally migratory pest of vegetable crops in Europe and Asia. Its migratory activity contributes significantly to population outbreaks, causing severe crop yield losses. Because an in-depth understanding of flight performance is key to revealing migratory patterns, here we used a computer-linked flight mill and stroboscope to study the flight ability and wingbeat frequency (WBF) of M. brassicae in relation to sex, age, temperature, and relative humidity (RH).The results showed that age significantly affected the flight ability and WBF of M. brassicae, and 3-d-old individuals performed the strongest performance (total flight distance: 45.6 +/- 2.5 km; total flight duration: 9.3 +/- 0.3 h; WBF: 44.0 +/- 0.5 Hz at 24 degrees C and 75% RH).The age for optimal flight was considered to be 2-3 d old. Temperature and RH also significantly affected flight ability and WBF; flight was optimal from 23 degrees C to 25 degrees C and 64-75% RH. Because M. brassicae thus has great potential to undertake long-distance migration, better knowledge of its flight behavior and migration will help establish a pest forecasting and early-warning system.

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