The pine shoot beetle is an invasive species in the Great Lakes region of the United States. The pine shoot beetle was brought to the United States from Europe, Asia, and northern Africa. The scientists in this study asked whether the pheromones that the invasive beetle uses could be used to deter them from attacking pine trees. Topics: Active Forest Management, Insects, Ecosystem, Habitat, Invasive Species, Native Species, Pine Shoot Beetle, Spanish.