中国农业科学 ›› 2024, Vol. 57 ›› Issue (20): 3989-3997.doi: 10.3864/j.issn.0578-1752.2024.20.005

• 专题:迁飞性害虫发生与防控 • 上一篇    下一篇

褐飞虱求偶鸣声的振动传播规律及感知行为

魏琪1(), 单瑶2, 冯泽霖3, 何佳春1, 赖凤香1, 万品俊1, 王渭霞1, 姚青4, 边磊2, 傅强1()   

  1. 1 中国水稻研究所水稻生物育种全国重点实验室,杭州 311401
    2 中国农业科学院茶叶研究所,杭州 310008
    3 浙江理工大学科技与艺术学院,浙江绍兴 312300
    4 浙江理工大学计算机科学与技术学院,杭州 310018
  • 收稿日期:2024-04-18 接受日期:2024-05-23 出版日期:2024-10-16 发布日期:2024-10-24
  • 通信作者:
    傅强,E-mail:
  • 联系方式: 魏琪,E-mail:weiqi01@caas.cn。
  • 基金资助:
    浙江省“尖兵”研发攻关计划(2022C02004); 国家水稻产业技术体系(CARS-01); 国家重点研发计划(2021YFD1401100)

The Vibration Propagation Laws and Perception Behavior of Mating Calls of Nilaparvata lugens

WEI Qi1(), SHAN Yao2, FENG ZeLin3, HE JiaChun1, LAI FengXiang1, WAN PinJun1, WANG WeiXia1, YAO Qing4, BIAN Lei2, FU Qiang1()   

  1. 1 State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 311401
    2 Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008
    3 Keyi College of Zhejiang Sci-Tech University, Shaoxing 312300, Zhejiang
    4 School of Computer Science and Technology, Zhejiang Sci-Tech University, Hangzhou 310018
  • Received:2024-04-18 Accepted:2024-05-23 Published:2024-10-16 Online:2024-10-24

摘要:

【目的】探究褐飞虱(Nilaparvata lugens)求偶鸣声振动传播规律,为研发和优化害虫物理防治新技术提供理论依据和实践指导。【方法】模拟稻田应用场景,以均方根值(RMS)作为振动强度的衡量指标,利用PDV-100型激光测振仪测试分析不同类型扬声器(振源)发射的振动波在水和空气中的传播衰减规律以及在稻株上的振动传导特点;根据昆虫基质传导振动原理,通过钢针点触方式回放异性鸣声信号来测试求偶活跃期雄虫对不同振动强度雌声的求偶鸣叫应答比例,并确定其振动强度感知范围。【结果】当扬声器置于水或空气中时,正弦波信号在10—500 cm范围内稻株上的振动强度均随着距离增加而降低,且除了距振源10 cm处外,两种振动传播方式条件下的其他位置(60—500 cm)振动强度无显著差异,而60 cm处相比于10 cm处在水和空气中分别衰减了84.87%和73.08%;进一步测试更高功率的定向扬声器时发现,正弦波信号在空气中的传播距离显著延长,20和30 W的声源分别在15和20 m处衰减87.27%和66.72%。回放预录制的雌、雄求偶信号在稻株上的振动强度无显著差别,均随振源信号强度的增加而增大,并呈指数函数关系。此外,褐飞虱雄虫对不同强度的雌声音频信号的求偶鸣声应答比例差异明显,当振速范围为782.2—835.9 μm·s-1时,有超过83%的雄虫具有鸣声应答行为;当振速范围为335.2—425.4 μm·s-1或更低时,仅有不到47%的试虫有应答反应。【结论】振动干扰信号可通过气传方式传播到稻株上,且振源强度越大,传播距离越远;不同生育期水稻的振动传导特征相似,但稻茎比叶片更易传导振动。褐飞虱成虫对不同振动强度的应答反应测试结果可作为未来评判振动干扰信号防控稻飞虱有效性的依据。

关键词: 褐飞虱, 基质传导振动, 衰减规律, 振速, 物理防治

Abstract:

【Objective】The objective of this study is to explore the vibration propagation laws of mating calls of the brown planthopper (BPH), Nilaparvata lugens, and to provide the theoretical basis and practical guidance for the development and optimization of novel techniques for physical pest control.【Method】Simulating a paddy field scenario, using the root mean square (RMS) as the measurement index of vibration intensity, the PDV-100 digital laser vibrometer was applied to test and analyze the propagation and attenuation characteristics of vibrations generated by different types of loudspeakers (as vibration sources) in water, air, and on rice plants. Based on the principle of substrate-borne vibration in insects, a steel needle point-touch method was used to play back female mating calls at varying intensities, which aimed to test the response rate of males during their mating active period and determine the range of vibration intensity they could perceive.【Result】When the vibration source was placed in water or air, the vibration intensities of the sinusoidal waves on rice plants decreased with increasing distance within the range of 10 to 500 cm. However, except for the position 10 cm from the vibration source, there was no significant difference in vibration intensity between the two modes at other positions (60-500 cm). At 60 cm, the intensity decreased by 84.87% in water and 73.08% in air compared to that at 10 cm. Furthermore, the application of higher-power directional loudspeakers revealed significantly extended propagation distances of sinusoidal wave signals in the air. Vibration sources with 20 and 30 W output power were attenuated by 87.27% at 15 m and 66.72% at 20 m, respectively. The vibration intensity on rice plants when playing back pre-recorded female and male courtship vibration signals showed no significant difference and increased with the signal strength of the vibration source, following an exponential function relationship. Additionally, the response rate of N. lugens males to female signals of different intensities showed significant differences. When the vibration velocity ranged from 782.2 to 835.9 μm·s-1, over 83% of male insects exhibited a calling response; however, when the vibration velocity was between 335.2 and 425.4 μm·s-1 or lower, fewer than 47% of males responded.【Conclusion】The disruptive vibrational signals can propagate to rice plants through the airborne pathway, with greater vibration source intensity resulting in farther propagation distances. The vibration conduction characteristics of rice plants are similar at different growth stages, but rice stems conduct vibrations more effectively than leaves. The results of response tests of N. lugens adults to different vibration intensities can serve as a basis for evaluating the effectiveness of disruptive vibrational signals in controlling N. lugens in the future.

Key words: Nilaparvata lugens, substrate-borne vibration, attenuation law, vibration velocity, physical control