[Evans, Marv]

For ants, I use Tempo Ultra SC manufactured by Bayer. You mix 4 ml per gallon of water. I use it to eliminate ant colonies - mostly red ants. I mix it in an old gallon container (Defender home insecticide ?) with a spout, which I use to pour down the entrance of the ant colony - maybe 8 to 16 oz. The next day the colony has collapsed. For spiders I use Terro spider and ant insecticide in the orange spray can I get from H.D. Any small bit of spray kills spiders very quickly. I only do this when they get intrusive. Otherwise I leave things alone.