Effective monitoring for this pest is so aggressive that it mainly affects the areas to the north of the Iberian peninsula.This trap with pheromone lures and traps effectively to individuals a male moth of the boj. It is essential to place it at the beginning of the spring, a period of increased activity of the moth, thus ensuring a monitoring for 6 months. biological Monitoring effective.Pheromones included.Protection for 6 months.Reusable.It works without water.