As the weather cools in October and early November, the new virgin queens emerge and mate with the drones. The newly mated queens then search for an appropriate place to spend the winter. All this frantic mating and searching requires considerable energy. To get that energy the queens become voracious feeders on sweets. At that time it is good to set out apple juice traps and pheromone traps.
Pheromones are natural chemicals produced by wasps which attract other wasps.
Again, for every queen trapped at this time means one thousand to five thousand fewer wasps during the next season. Remember, no matter how successful we may be in trapping Yellow Jackets, we cannot eliminate them all. We can however, bring their numbers down to tolerable levels.