Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, Hubei, China.
J Econ Entomol. 2011 Aug;104(4):1189-94. doi: 10.1603/ec11006.
After the reduction in the use of broad-spectrum insecticides, Adelphocoris suturalis (Hemiptera: Miridae) has become an important pest of transgenic cotton, Gossypium hirsutum L., in China. A. suturalis is a highly mobile insect, moving rapidly in and out of crop fields, and traps baited with sex pheromones may be useful in monitoring and controlling its numbers. However, little is currently known regarding the chemical communication based on sex pheromones by this species. To use the synthesized sex pheromone effectively as part of the integrated pest management, some fundamental biological parameters under which the pheromone is produced must be understood. In this study, attractiveness of adult females or males of A. suturalis to conspecific individuals was examined by Y-tube bioassay; we also investigated the female sexually mature age and circadian rhythm of male attraction to females of A. suturalis in the field in 2008 and 2010. Y-tube bioassay results indicated that only males were attracted to odors from sexually mature virgin females. Two-year field trapping experiments showed that 4-18-d-old virgin females effectively attracted males, and males were attracted to virgin females during the scotophase, with a peak between 1900 and 2300 hours. These results improve our understanding of the sexual communication behavior of A. suturalis and provide evidence of female-produced sex pheromone in this species.
在减少广谱杀虫剂的使用后，棉盲蝽（半翅目：盲蝽科）在中国已成为转基因棉花（Gossypium hirsutum L.）的重要害虫。棉盲蝽是一种高度移动的昆虫，在作物田间快速进出，并且用性信息素来诱捕的陷阱可能有助于监测和控制其数量。然而，目前对于该物种基于性信息素的化学通讯知之甚少。为了有效地将合成的性信息素用作综合虫害管理的一部分，必须了解产生信息素的一些基本生物学参数。在这项研究中，通过 Y 型管生物测定法检查了棉盲蝽成虫雌、雄虫对同种个体的吸引力；我们还研究了棉盲蝽雌虫性成熟年龄和 2008 年和 2010 年田间雄虫对雌虫的昼夜节律吸引。Y 型管生物测定结果表明，只有雄虫被性成熟的处女雌虫的气味所吸引。两年的野外诱捕实验表明，4-18 日龄的处女雌虫有效地吸引了雄虫，并且雄虫在暗期对处女雌虫有吸引力，在 1900 至 2300 小时之间达到高峰。这些结果提高了我们对棉盲蝽性通讯行为的理解，并为该物种中雌性产生的性信息素提供了证据。
