Shan Yao, Zhou Xiao-Sen, Cai Xiao-Ming, Luo Zong-Xiu, Li Zhao-Qun, Xiu Chun-Li, Chen Zong-Mao, Bian Lei
Tea Research Institute, Chinese Academy of Agricultural Science, Hangzhou, China.
Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Hangzhou, China.
Front Plant Sci. 2023 Oct 4;14:1273718. doi: 10.3389/fpls.2023.1273718. eCollection 2023.
The tea leafhopper, , relies on substrate-borne vibrations for sexual communication and is mainly controlled with chemical pesticides, which poses risks to the environment and food safety. Based on previous studies, we conducted a series of behavioral assays by simultaneous observation of vibration signals and movement to investigate the mating and post-copulation behavior of tea leafhoppers. During mating, the activity of was restricted to dawn and dusk and concentrated on the sixth or seventh mature leaf below the tea bud. By comparing the time spent in locating females among different males, the timely reply of females was the key factor affecting mating success. females mated only once in their lives, while males could mate multiple times. Male rivalry behavior involved two distinct strategies. The rivals could send disruptive pulses to overlap the male calling signals, locate the courting males, and drive them away after contact. Some rivals could emit mating disruption signals (MDSs) to interrupt the ongoing identification duet and establish their own mating communication. Both identification and location duets could be interrupted by playback of MDSs, which is essential to create effective synthetic signals to disrupt mating communication of . Our study clarified the spatial and temporal distribution of in mating and the function of MDSs, which will be essential to develop future vibrational mating disruption techniques for and its energy-efficient application in the field.
茶小绿叶蝉依靠基质传播的振动进行性交流,目前主要通过化学农药进行防治,这对环境和食品安全构成风险。基于以往的研究,我们通过同时观察振动信号和行为开展了一系列行为测定,以研究茶小绿叶蝉的交配和交配后行为。在交配过程中,茶小绿叶蝉的活动限于黎明和黄昏,且集中在茶芽下方的第六或第七片成熟叶片上。通过比较不同雄虫定位雌虫所花费的时间,雌虫的及时回应是影响交配成功的关键因素。雌虫一生只交配一次,而雄虫可以多次交配。雄虫竞争行为涉及两种不同策略。竞争对手可以发送干扰脉冲以重叠雄虫的求偶信号,定位求偶雄虫,并在接触后将其赶走。一些竞争对手可以发出交配干扰信号(MDSs)来中断正在进行的识别二重奏,并建立自己的交配交流。识别二重奏和定位二重奏都可以被MDSs的回放打断,这对于创建有效的合成信号以破坏茶小绿叶蝉的交配交流至关重要。我们的研究阐明了茶小绿叶蝉在交配过程中的时空分布以及MDSs的功能,这对于开发未来用于茶小绿叶蝉的振动交配干扰技术及其在田间的节能应用至关重要。