The Acana Moth Monitoring Trap has advanced pheromone technology that attracts moths to the unit, trapping them on the Sticky Board, to provide immediate and visual evidence of an infestation. Designed to initially act as a first alert of an infestation, it is then used to monitor the effectiveness of treatments being used to deal with the infestation. We recommend Acana Carpet & Fabric Moth Killer Spray as a suitable treatment for adult carpet moths, eggs, and larvae. The large surface area of the Sticky Board ensures effective trapping of any carpet moths or beetles present. The trap also comes with a Timestrip visual indicator, so you know exactly when to replace the Sticky Boards.