Having a problem with Roundup herbicide

[slag]

It's not just weeds, its also "some" grass. Lawn has been pretty pathetic for years, its time to do something about it.

 

[Texashiker]

It's not just weeds, its also "some" grass. Lawn has been pretty pathetic for years, its time to do something about it.

Do you have children?

If so, play a new game with them called pulling weeds.

 

[T_Yamamoto]

Stop posting in every thread, especially on issues which you have zero clue on. If you actually read the OP, he's trying to kill his lawn and not just kill weeds.

OP - what are temps at night? If the grass has already gone dormant, the grass blades may not absorb the herbicide.

I wanna. My post count must rise.

Maybe i didnt read the whole post.

I actually do have experience. I work on my lawn instead of my dad. We rarely use herbicides. If he is trying to kill his lawn, just increase concentration. So maybe 6oz for 3/4 of a gallon

The directions say 6 ounces per gallon.

What is so difficult about that?

If I want to make scrambled eggs for two. But the direction says one egg for one person. Wouldn't it be reasonable to use two eggs for two people?

If he's trolling, he's doing it wrong.

 

[Northern Lawn]

You're sure you got the Weed & Grass killer? Sometimes it's just weeds it kills if you get the wrong product.

 

[Bryophyte]

Glyphosate has gone generic. There is no need to buy 18% concentrate glyphosate as Roundup when you can buy 41% generic glyphosate. Either way, the chemical takes a week to ten days (or longer at cooler temps) to work. Mix up only as much as you can use at one time. Glyphosate breaks down quickly in soil, and it breaks down just as quickly in tap water, so whatever you have left over will be worthless if left in the sprayer for use later.

Edit: A bottle of Roundup that makes 10 gallons markets for somewhere around 22 bucks. A bottle of generic that makes (iirc) 21 gallons is typically around 12 bucks. I don't really feel like paying for Monsanto's advertising, so I just get the generic.

 

[Mermaidman]

You don't need to "saturate the lawn" with Roundup--wasteful. Only the leaves are affected.

In my experience (as recently as last month), it takes 1-2 weeks for the plants to go completely brown or yellow after I spray Round-Up on them. My guess is that your lawn is becoming dormant, but if that were the case, then why is it still green?

What exactly are you spraying it on?

 

[Capt Caveman]

I wanna. My post count must rise.

Maybe i didnt read the whole post.

I actually do have experience. I work on my lawn instead of my dad. We rarely use herbicides. If he is trying to kill his lawn, just increase concentration. So maybe 6oz for 3/4 of a gallon

If you wanted to do better in school, you'd think you would stop posting so often, especially from school. And being annoying here, more than probably reflects your persona in real life and might explain some of your social issues.

 

[Capt Caveman]

You don't need to "saturate the lawn" with Roundup--wasteful. Only the leaves are affected.

In my experience (as recently as last month), it takes 1-2 weeks for the plants to go completely brown or yellow after I spray Round-Up on them. My guess is that your lawn is becoming dormant, but if that were the case, then why is it still green?

What exactly are you spraying it on?

If a lawn has gone dormant, it can still be green.

 

[BoomerD]

Probably the low temp. But the new/improved roundup is not as good as the old stuff. Used to be 1oz/gal....bastards. Had great success with the local farm supply concentrate and it was way cheaper. 1 gallon of concentrate ~$45.00....3 oz/gallon mixture.

You can buy different strengths of the concentrate...

Glyphosate has gone generic. There is no need to buy 18% concentrate glyphosate as Roundup when you can buy 41% generic glyphosate. Either way, the chemical takes a week to ten days (or longer at cooler temps) to work. Mix up only as much as you can use at one time. Glyphosate breaks down quickly in soil, and it breaks down just as quickly in tap water, so whatever you have left over will be worthless if left in the sprayer for use later.

And there's the answer I was waiting for...Round-up isn't an "instant weed-killer." It can take up to 2 weeks or more to do its job.

One thing I've found that DOES make it more efficient is to add a bit of liquid dishwashing soap to the mix. Makes it stick to the plants better...and (according to one of my college professors) "makes the water wetter," so it's absorbed by the plant better.
I'm not a kemest, so I dunno about that last part, but in a one-gallon sprayer, I add 2-4 oz. of liquid dish soap...and the Round-up works fabulously for me. Just don't expect miracles...and instant weed/grass death. It takes time to work.

 

[iamwiz82]

You can buy different strengths of the concentrate...




And there's the answer I was waiting for...Round-up isn't an "instant weed-killer." It can take up to 2 weeks or more to do its job.

One thing I've found that DOES make it more efficient is to add a bit of liquid dishwashing soap to the mix. Makes it stick to the plants better...and (according to one of my college professors) "makes the water wetter," so it's absorbed by the plant better.
I'm not a kemest, so I dunno about that last part, but in a one-gallon sprayer, I add 2-4 oz. of liquid dish soap...and the Round-up works fabulously for me. Just don't expect miracles...and instant weed/grass death. It takes time to work.

Shut your mouth, I have seen the Roundup commercials.

 

[T_Yamamoto]

If you wanted to do better in school, you'd think you would stop posting so often, especially from school. And being annoying here, more than probably reflects your persona in real life and might explain some of your social issues.

The kids are taking the PSAT. I did everything i could during this 4 hour period. Still in my class waiting for people to finish.

Shut your mouth, I have seen the Roundup commercials.

So...you're saying that commercials don't tell the truth?

 

[slag]

Do you have children?

If so, play a new game with them called pulling weeds.

We have. We pulled bermuda grass out for many hours about a month ago. Didn't make a difference as the rhizomes were still there and resprouted.

 

[fstime]

...

 

[Bryophyte]

We have. We pulled bermuda grass out for many hours about a month ago. Didn't make a difference as the rhizomes were still there and resprouted.

Glyphosate only enters the plants through the leaves. If you pull it up before you spray, then the plants that resprout after that never got treated. That is probably your problem.

 

[Gonad the Barbarian]

http://www.walmart.com/ip/Eliminator...32-oz/17126444

Cheaper and more concentrated. You and the world are better off not buying Monsanto products. Adding a few drops of dish detergent in the mix can improve speed and effectiveness. Adding food dye can help you see exactly what's sprayed. But it can take a couple of weeks to completely kill. I've found mixing stronger makes a difference with speed but not the end result.

 

[slag]

You don't need to "saturate the lawn" with Roundup--wasteful. Only the leaves are affected.

In my experience (as recently as last month), it takes 1-2 weeks for the plants to go completely brown or yellow after I spray Round-Up on them. My guess is that your lawn is becoming dormant, but if that were the case, then why is it still green?

What exactly are you spraying it on?

I think you are reading into what I wrote too much. I didn't saturate the soil, I completely covered all the leaves, i.e, saturated them to where they were covered completely.

This is part of the yard. It was somewhat brown before I started. Pretty pathetic. The leaves were not there when I sprayed, they came down in the past couple days.

 

[slag]

Glyphosate has gone generic. There is no need to buy 18% concentrate glyphosate as Roundup when you can buy 41% generic glyphosate. Either way, the chemical takes a week to ten days (or longer at cooler temps) to work. Mix up only as much as you can use at one time. Glyphosate breaks down quickly in soil, and it breaks down just as quickly in tap water, so whatever you have left over will be worthless if left in the sprayer for use later.

Edit: A bottle of Roundup that makes 10 gallons markets for somewhere around 22 bucks. A bottle of generic that makes (iirc) 22 gallons is typically around 12 bucks. I don't really feel like paying for Monsanto's advertising, so I just get the generic.

Couldn't find the generic at the two hardware stores I went to.
This is what I purchased:
http://www.acehardware.com/product/index.jsp?productId=1391833

 

[slag]

Glyphosate only enters the plants through the leaves. If you pull it up before you spray, then the plants that resprout after that never got treated. That is probably your problem.

You need to go back and re-read everything that has been posted.

We pulled the bermuda grass over a month ago. It has since resprouted. I treated the lawn 11 days ago.

Follow the timeline...

I'm trying to kill everything on top of the ground right now.

 

[BoomerD]

We have. We pulled bermuda grass out for many hours about a month ago. Didn't make a difference as the rhizomes were still there and resprouted.

Fucking bermuda grass is teh debbil! Round-up isn't very effective on Bermuda for whatever reason. It'll kill it...but you often have to do it repeatedly.

http://www.bermuda-attractions.com/bermuda_0000fe.htm

 

[Capt Caveman]

Couldn't find the generic at the two hardware stores I went to.
This is what I purchased:
http://www.acehardware.com/product/index.jsp?productId=1391833

Visible results in 12 hours

Now, that's funny.

 

[Texashiker]

The leaves were not there when I sprayed, they came down in the past couple days.

Oh great, you killed the trees.

 

[Bryophyte]

You need to go back and re-read everything that has been posted.

We pulled the bermuda grass over a month ago. It has since resprouted. I treated the lawn 11 days ago.

Follow the timeline...

I'm trying to kill everything on top of the ground right now.

It can still be resprouting after a month. Regardless, your main problem is probably that you expected results in three days to begin with. Glyphosate only shows those kinds of results when it is hot out, if even then. It is slow acting.

You do realize that you can till it now, right? You can apply glyphosate and till the next day. Once it is in the plant, it will work whether you till or not. You don't have to wait for it to die first.

 

[highland145]

Guys, he's obviously kidding.

Obliviously.

 

[slag]

It can still be resprouting after a month. Regardless, your main problem is probably that you expected results in three days to begin with. Glyphosate only shows those kinds of results when it is hot out, if even then. It is slow acting.

You do realize that you can till it now, right? You can apply glyphosate and till the next day. Once it is in the plant, it will work whether you till or not. You don't have to wait for it to die first.

From what my neighbor told me, it takes up to 72 hours for the grass to suck down the stuff and if I don't see results by then, (not completely dead, but mostly dead), then reapply which is what I did. I trust her opinion since she used to do this professionally. I did expect some results in 3 days, yes, but didn't see anything after 3 days so I reapplied at which point, after a few more days, I saw a very slight browning on the top.

I'll probably just till it under on Friday evening and then take out the grass/roots with a dethatcher/rake.

 

[highland145]

It's not just weeds, its also "some" grass. Lawn has been pretty pathetic for years, its time to do something about it.

SOIL TEST before you try to grow anything else.