Acta Agriculturae Zhejiangensis ›› 2024, Vol. 36 ›› Issue (9): 2051-2059.DOI: 10.3969/j.issn.1004-1524.20240268

• Plant Protection • Previous Articles     Next Articles

Interference of LED green light on the feeding behavior of Empoasca onukii Matsuda

QIAO Li1(), CHEN Lei1, JIANG Yueli2, ZHOU Zhou1, GENG Shubao1, WANG Lijuan3,*()   

  1. 1. School of Agronomy, Xinyang Agriculture and Forestry University, Xinyang 464000, Henan, China
    2. Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
    3. Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
  • Received:2024-03-27 Online:2024-09-25 Published:2024-09-30

Abstract:

Empoasca onukii Matsuda is one of the common pests in tea areas in China, and its harm seriously affects the yield and quality of tea. In order to reduce the residues of chemical pesticides and explore new control methods of leafhoppers in tea garden, LED green light (wavelength 520-525 nm) was used to interfere the feeding process of E. onukii, which was sensitive to light, the effects of light intensity and irradiation time on the feeding behavior of E. onukii were analyzed by means of electrical penetration graph (EPG) recording. The results showed that, the waveform produced by the feeding process of E. onukii were NP wave, A wave, C wave, E wave, S wave, F wave and R wave, among which NP wave accounted for the largest proportion. Compared with natural light (control), LED green light significantly inhibited the feeding behavior of E. onukii. At the same time, the higher the light intensity, the lower the percentage of spiking, and the more stinging and sucking times, the more obvious interference to the feeding behavior of E. onukii. The results of this study could provide technical support for the application of light prevention and control of leafhopper in tea garden.

Key words: LED green light, feeding behavior, Empoasca onukii Matsuda, electrical penetration graph (EPG)

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