We recommend using the Spectracide Triazicide Once & Done Insect Killer Concentrate solution within 24 hrs of diluting with water for the most effective results.
Spectracide Triazicide Once & Done Insect Killer Concentrate does list that it will control spiders on the product label. This product has now been discontinued.
If you are looking for something with the same active as Spectracide Triazicide Once & Done Insect Killer Concentrate, you may consider using the professional grade product Scion Insecticide or Spectracide Bug Stop Home Barrier which is consumer grade. Spectracide is still available it is just currently out of stock.
