Does this call for chemical warfare? they need to reduce reproduction.. too many of them.... perhaps no predators.. whats the natural solution? How about your pail of water with dish washing liquid mixed in?
hehe

saw this on the internet :

Fill your home with cedar. You can also use cedar oilin a spray bottle diluted with water or in a diffuser that can spread the scent of cedar. Moths and other insects are repelled by the pheromones in cedar.