Spraying roundup on soil is a waste of roundup. Roundup works through uptake from the leaves. You're better off spraying first, waiting a few days and then tilling.Are you looking to seed the yard with grass?
I can tell you what my landscaper did when I had a lawn seeded. They tilled and graded the soil with weeds and all. Then sprayed RoundUp on the tilled soil, layed down a layer of topsoil and seeded. My lawn turned out beautiful.
I've been told RoundUp goes inert after 24 hours. So, if you're not going to put topsoil down: till the soil, RoundUp, wait a day or two, then seed.
I agree, spraying roundup AFTER you tilled is pointless.Spraying roundup on soil is a waste of roundup. Roundup works through uptake from the leaves. You're better off spraying first, waiting a few days and then tilling.
And roundup=inert after 24-48 hours.
But if you must spray Roundup on your soil, buy Kleenup pro or Honcho. It's the exact smae thing at half the price.
Just a point to ponder. IF the soil is completely raked clean, this is correct. Some people go ahead and spray just as a precaution in case there are small bits of weed that will sprout back up, or even pieces of bermuda roots.I agree, spraying roundup AFTER you tilled is pointless.