Sue from Denver, Co writes
CB PCO Fogger with Pyrethrins will kill spiders, but only the spiders that are exposed at the time the fogger is released. For indoor use, instead of fogging we recommend spraying a residual insecticide such as Demand CS into the cracks and crevices around door and window frames, baseboards, under appliances and in places where cables, pipes and wires enter through the walls. You can also use Demand CS to spray around the exterior on the foundation, door and window frames, around places where cables, pipes and wires enter into the structure and any other crack, crevice or hole where insects can gain entry. By using the residual insecticide inside and outside you will be eliminating hidden spiders that come out to hunt and also the insects that they are there to prey on. By eliminating the spiders' food source, you will be forcing the spiders to move out and you will be making the structures less desirable to other spiders looking for new hunting grounds. See our Spider Control Guide for more information about controlling spiders.
Answer last updated on: 08/16/2019
