Abstract: A new, long-lasting insect-attracting agent, APF-Ⅰ, for controlling Monochamus alternatus in the forest was studied.A field experiment was conducted at Fengshan National Forest Park, Ganzhou, Jiangxi during 2015-2016 to optimize its application. Subsequently, demonstrations were given in the areas infested by the pine wilt disease or severely damaged by the pine sawyer beetle at Ganzhou and Ji'an in the province. The height, density and spatial location of the trap placement significantly affected the insect attraction. The APF-Ⅰ containing traps were most effective by placing them at periphery of a forest on summit with ample ventilation and hanging at a height greater than 4 m above-ground with a 50-150 m spacing between two neighboring traps and a triangular trap setting in the woods. As a result, the pine mortality due to the wilt disease was significantly reduced. A relative rate of the decline reached 81.47% in two years of the application. As an additional benefit, a 56.14% efficacy was observed in the adjacent areas as well. It appeared that significant economic and ecological benefits could be realized with the APF-Ⅰ trapping.