Highly effective traps for Japanese bettle control. Lures are included that attract both male and female beetles. Once inside the beetles can't fly or chew their way out of the large capacity, expandable container. The traps stay vertical and have drainage slots to eliminate odors. The containers are easily removed for emptying. Set the reusable traps out in June and leave until fall. The lures usually last an entire season. Replacement lures sold separately.