Killing my lawn

[drebo]

I need to kill my back lawn (and my front, but that's different) so that I can replant with new grass. It's mostly weeds. Most of the grass/weed killer prevents growth for a year...I want to replant much sooner.

Anyone have a recommendation for a product to use to kill all the weeds and grass that's out there so I can lay new sprinklers and seed new lawn?

 

[Stopsignhank]

I learned this from a landscape contractor and used it when I did my front lawn. What you want to do first is to fertilize your lawn. You want everything to be healthy and in good shape. Then after a week or two spray it with roundup. This kills the plant and the roots.

Not sure what your next step would be, but I used a pick to then get rid of all of the dead lawn. Put some top soil on and then seeded it. It was a great lawn up until we moved.

 

[edro]

You can bake it by covering it with plastic, depending on how big your yard is.

I thought roundup (glyphosate) was absorbed by the leaf and then kills the plant, but decomposes rather quickly. Some glyphosate products also contain salts to do an instant kill up top so you get results in a day. The salts might soak into the ground more and stop future growth longer.
I think if you get pure glyphosate product, you can replant in a few weeks.

This says 7 days: http://www.roundup.com.au/faqs/when-can-i-replantreseed-after-use

 

[NoTine42]

You can bake it by covering it with plastic, depending on how big your yard is.

I thought roundup (glyphosate) was absorbed by the leaf and then kills the plant, but decomposes rather quickly. Some glyphosate products also contain salts to do an instant kill up top so you get results in a day. The salts might soak into the ground more and stop future growth longer.
I think if you get pure glyphosate product, you can replant in a few weeks.

This says 7 days: http://www.roundup.com.au/faqs/when-can-i-replantreseed-after-use

Yep, Glyphosate doesn't stop stuff from re-growing. (I used a 42% concentrate from TSC...and diluted per instructions) I probably did at least 6 sprayings last summer while attempting to keep my baseball infield clear.

 

[turtile]

Roundup (glyphosate) is the cheapest and breaks down very quickly. Make sure you get the right type of Roundup. Some come mixed with pre-emergents which prevent future growth while others contain diquat which persists longer.