I used WeedBGon which contains 2-4-D. It is a broadleaf weed killer. I only have weeds because the grass isn't thick enough right now. Once the pasture is more established, the weeds won't be a problem. Since I will be using a pasture mix which contains clover, I won't be able to use a broadleaf weed killer in the future since it would kill the clovers too. I kept my horses off it for a few days, but the over-the-counter products like WeedBGon are safe to let them back on as soon as the product dries unless you are raising animals for meat or have nursing youngsters. Commercial preparations have a longer withdrawal period.
I haven't heard of Stinger. I only have about 3/4 acre to cover though so have done it myself with the hose-attached concentrated formula.
Good point about discing although our local extension office recommends it when rebuilding a pasture.
Thanks for the info!!
I have three horses on this 3.5 acre pasture, and I can rotate it with another area, but it's probably still not big enough to keep them from eating it down.
I would reccomend using 2 quarts of Round-up per acre to kill everything-then reseed using a no till drill.Do it in the spring since it's too late to seed now and I wouldn't want the groung to be bare in the winter,too much danger of erosion.