An enhanced lure for eastern populations of the North American spruce beetle, <i>Dendroctonus rufipennis</i> Kirby (Coleoptera: Curculionidae)

These data are counts of spruce beetles (<i>Dendroctonus rufipennis</i> Kirby), Eastern larch beetles (<i>Dendroctonus simplex</i> LeConte), and dubious checkered beetles (<i>Thanasimus dubius</i> F.) captured in multiple funnel traps in response to four different <i>D. rufipennis</i> pheromone lures, including two novel formulations. The data include results from two separate experiments conducted in Fundy National Park, NB, Canada in 2021 and Memramcook, NB, Canada in 2022.