I have a customer that is interested in having me spray a couple horse pastures with a weed killer to pinch out a very wide variety of weeds including thistle, in preperation for over seeding. Al though my concern is that they would like to put the horses back out to graze the grass in the pastures as soon as possible after spraying. Any product lesco carry that is very broad spectrun weed control and limited time lapse for re-entry for eating the grass? Any help here would be helpful. Oh and i believe i can order a pasture seed blend from lesco also correct? Thanks for your help.