Final answer:
A pheromone trap is useful for predicting potential beetle re-infestation of wood. Pheromones are chemicals released by insects that influence the behavior of others within the same species.
Step-by-step explanation:
A phermone trap is useful for predicting potential beetle re-infestation of wood. Pheromones are chemicals released by insects that influence the behavior of others within the same species. In this case, the pheromone trap uses chemicals to lure beetles and can be used to count insect populations and trap pests. For example, a pheromone-impregnated lure is encased in a conventional trap, attracting beetles to the trap and allowing their population to be monitored or controlled.