This study aimed to investigate the effectiveness of the Pestman in-ground bait station in controlling Coptotermes formosanus. The results showed that the monitoring wood pieces of the Pestman in-ground bait station had good termite-attracting ability when the average daily temperature was above 19 °C. The underground plastic bait stations were designed to ensure continuous feeding by the termites. Hexaflumuron, the insecticide in the bait stations, exhibited strong killing activity against C. formosanus. The colony in the artificial fir and camphor mixed forest at Taolin Hotel in Changde City was successfully eliminated with a total consumption of 150 g of hexaflumuron.