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Chinese Journal of Biological Control ›› 2023, Vol. 39 ›› Issue (4): 970-977.DOI: 10.16409/j.cnki.2095-039x.2022.11.012

• SCIENTIFIC NOTES • Previous Articles     Next Articles

The Behavioral Response of Nilaparvata Lugens to Rice Volatiles Induced by Chilo Suppressalis

WANG Xiaolong1, SU Shuangli2, HU Xiaoyun2, YIN Xinming1, LI Yunhe2   

  1. 1. College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, China;
    2. State Key Laboratory for the Biology of the Plant Diseases and Insect Pests/Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
  • Received:2022-05-06 Online:2023-08-25 Published:2023-08-25

Abstract: Previous studies showed that the brown planthoppers (BPH), Nilaparvata lugens, exhibited a strong preference to rice plants that had been infested by the rice striped stem borer (SSB), Chilo suppressalis. In order to identify the rice volatiles that affect the host-searching behavior of BPH, we tested the responses of BPH to 15 key rice volatile compounds induced by SSB infestation using H-tube olfactometer. The results showed that the four compounds including β-caryophyllene, 2-nonanone, germacrene D and (3E)-4,8-dimethyl-1,3,7-nonatriene were significantly attractive to BPH compared to the control (hexane). In contrast, the three compounds including methyl salicylate, 2-undecanone, and (3E,7E)-4,8,12-trimethyl-1,3,7,11-tridecatetraene exhibited significant repellence to BPH. No effect on BPH behaviors were detected in 8 compounds, α-pinene, 2-tridecanone, (E)-2-heptenyl acetate, tridecanal, benzyl benzoate, isophorone, 2-pentadecanone, o-cymene, and isopropyl myristate. In summary, rice plants infested by SSB caterpillar release volatiles both attractive and repellent to BPH, and the preference of BPH to SSB-infested rice plants is caused by combined effects of multiple volatile compounds emitted by SSB-infested plants. These results provide a basis for the preparation of repellents or attractants for controlling the brown planthoppers.

Key words: Chilo suppressalis, Nilaparvata lugens, herbivore-induced rice volatiles, attraction, repellence

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