In Reply to: Spiders in my shop posted by BlasterStumps on July 04, 2017 at 23:50:27:
You might try a product called Cedarcide. They have several products we've had good results from. Kind of pricey, but it goes a pretty long way. We use the granules around the perimeter of the house as a barrier. I also keep the cedar oil. It's water soluble to use as a spray at various concentrations.
As you can imagine, it has a very strong cedar odor. Some folks don't like it.