You can use a funnel trap with an attractant. See: J. Econ. Entomol. 2008 Apr; 101(2): 409–20, Traps and attractants for wood-boring insects in ponderosa pine stands in the Black Hills, South Dakota.

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There are several options for the control of D. minutus, such as phytosanitary methods, biological control, physical methods and chemical control. Selecting the best option depends on a number of factors, such as the severity of infestation, the location of infestation, potential for reinfestation, and cost of treatment (Plank, 1950; Xu Tiansen, 1983; Kumar et al., 1985; Liu Yuan and Xu, 1985; Yang Guarong, 1991; Li Yanwen et al., 1996; Xu Changtang, 2003).