Check this website http://store.doyourownpestcontrol.com.
I have the same problems with spiders as you and have used Demon.
Cyper and Cynoff are cheaper and have the same percentage active ingrediant as Demon. I thinik next time I will try either Cyper or Cynoff.
All three have a residual of...
I live in south Louisiana next to the woods/swamp and have a big problem with spiders. I have found one product that works very well with keeping spiders and such away for up to 3 or 4 months, Demon WP. Here is a link to it-
http://www.pestproducts.com/demonwp.htm
Works very well
Richard
I am in the process of putting up a 30 x 60 x 16 metal building from Duro Span. It has the straight walls and the rest is the curved panels. We could probably put this thing up in 2 weekends, but I am putting it up as I get the help. A few arches at a time. Had 6 arches put up and Hurricane...