This study examined the effect of combining visual and olfactory cues to attract oriental fruit flies (OFFs). Six different colored light-emitting diodes (LEDs) served as a visual attractant and methyl eugenol served as olfactory bait to lure male flies. An internet of things (IoT)-based pest monitoring system, consisting of sensor nodes, a gateway, and automatic counting traps, was deployed in the field to automatically collect environmental data and pest counts. The results of the calibrated experiments indicated that green, yellow, or red LEDs exhibited better performance in attracting flies than white, purple, or blue LEDs or no LEDs. With an accurate combination of visual and olfactory cues, the proposed IoT-based pest monitoring system may be an effective tool in agricultural pest management, given its advantages for efficiently capturing OFFs in a labor and time saving manner, providing accurate information regarding increases in pest populations, and enabling long-term, real-time data collection.

这项研究检验了结合视觉和嗅觉线索来吸引东方果蝇（OFF）的效果。六种不同颜色的发光二极管（LED）作为视觉引诱剂，甲基丁香酚作为嗅觉诱饵来引诱雄性苍蝇。现场部署了基于物联网（IoT）的害虫监测系统，由传感器节点、网关和自动计数陷阱组成，自动收集环境数据和害虫计数。校准实验的结果表明，绿色、黄色或红色 LED 在吸引苍蝇方面表现出比白色、紫色或蓝色 LED 或无 LED 更好的性能。通过视觉和嗅觉线索的准确结合，所提出的基于物联网的害虫监测系统可能成为农业害虫管理的有效工具，因为它具有以节省劳力和时间的方式有效捕获OFF的优点，提供有关害虫增加的准确信息人口，并实现长期、实时的数据收集。