Can I use roundup before I seed?

[shaner72]

Can I use roundup to kill the grass and weeds, then go back and rake up the ground to lime/fert and seed?

[gmil6184]

yes you can, a very good way to start a plot if you don't have access to much equipment. Round Up only kills plants that are currently growing so it wont effect your seeds

[gregrn43]

gmil is right spray the far out of it.

[Ridge Runner]

what ya plantin? not sayin you can't use roundup but there may be a better choice
RR

[jdhogg]

with roundup you can also replant a week later.but dont use any sterilizer or nothing will grow for a while

[macman99]

I hope someone out there has better luck with Roundup than I've had.

I got it to kill weeds and grass before seeding and it said it would "show results within 6 hours."

Well, the "results" were that it just made the grass a little bit brown and didn't kill it at all. This was after I basically soaked the ground with the stuff.

MNow, maybe I have some kind of hardy midwest grass that's super-hard to kill (lol), but I'm looking for something else - Roundup didn't do squat. Just FYI to check and see what works for other people in your neck of the woods before you spend too much money.

[M.Magis]

Roundup (glyphosate) works very well. Not sure what you were using that promised results in 6 hours, likely highly concentrated name brand stuff. Still, 6 hours seems unreasonable for most plants. I wait a minimum of two weeks before determining what died and what didn't. If high dollar Roundup didn't work at all, something went wrong on your end.

[Soilman]

Fast acting roundup formulations add an ingredient to burn plants. This doesn't mean the plants actually die in 6 hours, just that they have been sprayed and they get brown specks (as you observed). Magis is right, patience is still needed for the roundup to actually kill the plant.

[Ben / PA]

When I spray with Glyphosate, (Round Up) I wait at least a week to see real results.

[psandhu]

I can see results in 24 hours when I spray. This is on things like johnsongrass, ragweed, pigweed. I'm using generic glyphosate at 2%, adding 1% ammonium sulfate, and adding .5% crop oil spreader/surfactant. Ammonium sulfate is about $20 for a 50lb bag. The spreader is about $50 for a 2.5 gallon jug. I bought generic gly yesterday for $37.50 for a 2.5 gallon jug.

Use AMS & a surfactant.