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Regulation of Visual Sensitivity Responses in Locusts Stimulated by Different Spectral Lights

Regulation of Visual Sensitivity Responses in Locusts Stimulated by Different Spectral Lights

Qihang Liu1,2, Yueli Jiang1, Jin Miao1, Zhongjun Gong1, Tong Li1, Yun Duan1 and Yuqing Wu1*

1 Institute of Plant Protection, Henan Academy of Agricultural Sciences Zhengzhou 450002, China
2 Henan Institute of Science and Technology, Xinxiang 453003, China

Qihang Liu and Yueli Jiang contributed equally to this article and are co-first authors.

*  Corresponding author: yuqingwu36@hotmail.com

 

ABSTRACT

The locusts are causing significant damage to crops, around the globe. To avoid ecological pollution caused by the use of pesticides to control locusts, alternative methods such as photo-induced traps are elusive. In this report we investigated locusts visual sensitivity to different spectral lights after orange light stimulation. Results showed that after 10, 20, and 40 min of 1000 lx post-orange light stimulation, locusts visual response intensity was stimulated by green, violet, and blue lights. However, post-64600 lx orange light stimulation for 30, 20, and 10 min, the response intensity was the strongest. Moreover, orange light affected locusts visual responses to blue light, presenting the inhibiting effect in short time and the strengthening effect in long time to green light. On the other hands, opposing effects were recorded using violet light. It was also noticed that by increasing orange light illumination, the changes of locusts visual response effect visual stress sensitivity from orange light to other spectral light. Moreover, the visual state induced by orange light regulated locusts visual behavior to enhance phototactic effect. These results can be exploited to control pests using light stimulation where orange light time regulates the visual response to intensify bio-response effect.
 

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Pakistan Journal of Zoology

December

Vol. 51, Iss. 6, Pages 1999-2399

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