Effect of a near-zero magnetic field on development and flight of oriental armyworm (Mythimna separata)


" In this study we investigated the developmental and behavioral effects of rearing M. separata in a near-zero magnetic field (<500 nT) compared to the local geomagnetic field (approximately 50 μT). The near-zero magnetic field produced by a Helmholtz coil system significantly lengthened larval and pupal development durations, increased male longevity, and reduced pupal weight, female reproduction, and the relative expression level of the vitellogenin (Vg) gene in newly emerged females. Moreover, the near-zero magnetic field had a considerable negative effect on the mating ratio of M. separata adults. In addition, the moths in the near-zero magnetic field displayed less flight activity late in the night than those in the Earth’s normal geomagnetic field, indicating that the flight rhythm of M. separata may be affected by the near-zero magnetic field. ." {Credits 1}

{Credits 1} 🎪 YAN Meng-meng, ZHANG Lei, CHENG Yun-xia, Thomas W. SAPPINGTON, PAN Wei-dong, JIANG Xing-fu. 0. (JIA-2020-0303) Effect of a near-zero magnetic field on development and flight of oriental armyworm (Mythimna separata). Journal of Integrative Agriculture, Doi:10.1016/S2095-3119(20)63287-7. © 2020 CAAS. This work is licensed under a Creative Commons CC-BY-NC-ND 4.0 license.


Last modified on 20-Sep-20

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