Yes, Tempo SC Ultra is labeled to kill spiders. Spiders are very difficult to control and most residual insecticides like Tempo SC Ultra will kill any spider that it is physically sprayed on, but new spiders entering the area are very difficult for any insecticide to control. This is because spiders bodies are high off of the ground and they do not groom their legs like other insects do. How these products mainly control spiders is that they kill the spiders prey (other insects), and if there is no food around, then the spiders will either starve to death or move on.
Answer last updated on: 08/08/2009