Influence of green light illumination at night on biological characteristics of the oriental armyworm, Mythimna separata (Lepidoptera: Noctuidae)

The oriental armyworm, Mythimna separata is an important crop pest in eastern Asia. Nocturnal insects, including nocturnal moths, have phototactic behavior to an artificial light source. Phototactic behavior in insects is species-specific in response to different wavelengths of light sources. Our pr...

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Bibliographic Details
Published in:Bulletin of entomological research 2020-02, Vol.110 (1), p.136-143
Main Authors: Kim, K-N, Jo, Y-C, Huang, Z-J, Song, Hye-Seng, Ryu, K-H, Huang, Q-Y, Lei, C-L
Format: Article
Language:English
Subjects:
Animals
Butterflies & moths
Developmental stages
Eggs
Female
Females
Humidity
Illumination
Insects
Larva - radiation effects
Light
Light emitting diodes
Light sources
Longevity - radiation effects
Male
Moths - growth & development
Moths - radiation effects
Mythimna separata
Night
Nocturnal
Ovum - radiation effects
Pest control
Pesticides
Pupa - radiation effects
Reproduction - radiation effects
Wavelength
Wavelengths
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Summary:The oriental armyworm, Mythimna separata is an important crop pest in eastern Asia. Nocturnal insects, including nocturnal moths, have phototactic behavior to an artificial light source. Phototactic behavior in insects is species-specific in response to different wavelengths of light sources. Our previous study showed that green (520 nm) light emitting diode (LED) light resulted in a significantly higher phototactic behavior in M. separata moths compared to the other wavelength LED lights. The goal of the present study is to investigate the influence of green light illumination on biological characteristics of different developmental stages in M. separata. Our results revealed that when different developmental stages of M. separata were exposed to the green light illumination in a dark period, several biological characteristics in all developmental stages except for egg stage were positively changed, but those of F1 generation M. separata which are next generation of the adults exposed to the green light did not significantly change compared with the control level. These findings suggest that green light illumination at night (or dark period) has a positive effect on the development and longevity of M. separata.
ISSN:0007-4853
1475-2670
DOI:10.1017/S0007485319000397