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Getting Rid of Crabgrass #2820240
09/13/20 02:17 PM
09/13/20 02:17 PM
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New Jersey
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Powerflow Offline OP
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I managed to neglect my lawn this year to the point of it being nearly all crabgrass. We would like to get our house on the market by next spring so we need to figure out a solution now. What can we do to make the lawn real grass again?

Thanks for any ideas.

Harold

Re: Getting Rid of Crabgrass [Re: Powerflow] #2820252
09/13/20 03:15 PM
09/13/20 03:15 PM
Joined: Nov 2004
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California
BloFish Offline
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Tear it out and put in sod.


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as long as you look good doing it!

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Re: Getting Rid of Crabgrass [Re: BloFish] #2820321
09/13/20 06:01 PM
09/13/20 06:01 PM
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Ontario, Canada
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Stanton Offline
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a) its too late to grow grass this year
b) the crabgrass won't sprout till the ground gets hot so if you sell in the spring the new owners will never know till mid summer.

Re: Getting Rid of Crabgrass [Re: Stanton] #2820336
09/13/20 06:27 PM
09/13/20 06:27 PM
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Prospect, PA
BSB67 Offline
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Originally Posted by Stanton
a) its too late to grow grass this year
b) the crabgrass won't sprout till the ground gets hot so if you sell in the spring the new owners will never know till mid summer.


This.
Plus, your only oppertunity is a spring application of a pre-emergence crabgrass killer to get rid of it. Getting the application timing right requires a bit of the stars lining-up, but if you do, it's pretty effective. Don't screw aroung with weed and feed products.

Re: Getting Rid of Crabgrass [Re: BSB67] #2820532
09/14/20 10:17 AM
09/14/20 10:17 AM
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Ontario, Canada
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Stanton Offline
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There are a couple good crabgrass killers out there. "Dimension" is in pellet form and is both a pre-emergent AND post-emergent if the stuff is caught early. I used this this year for the first time and am pleased with the results. I still have some crabgrass but not as much as usual and we had the ideal summer for it so, yes, it works.

"Tenacity" is another product that looks to be very good. I plan to try that next year (if the borders ever open so I can shoot down and get some!)

There are a couple others out there but these two seem to have the most promise.

Re: Getting Rid of Crabgrass [Re: Stanton] #2820724
09/14/20 06:32 PM
09/14/20 06:32 PM
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New Jersey
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Powerflow Offline OP
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Thanks everyone for your replies. It looks like my best course is to wait until spring before I do anything. Hope there'll be regular grass on the lawn after the crabgrass is gone.

Re: Getting Rid of Crabgrass [Re: Powerflow] #2820734
09/14/20 06:59 PM
09/14/20 06:59 PM
Joined: Nov 2004
Posts: 24,996
Texas
GoodysGotaCuda Offline
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Originally Posted by Powerflow
Thanks everyone for your replies. It looks like my best course is to wait until spring before I do anything. Hope there'll be regular grass on the lawn after the crabgrass is gone.


You need to get the pre-emergent down asap, keep seeds from germinating. You can use some weed killer with 2,4-D and quinclorac to take out what's there. But it'll brown and kill the crabgrass, which may or may not be better for what you are trying to do.

Pre-emergent needs to be done asap. At least that's what i'd tell you to do in Texas.

Last edited by GoodysGotaCuda; 09/14/20 07:02 PM.

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Re: Getting Rid of Crabgrass [Re: Powerflow] #2820744
09/14/20 07:23 PM
09/14/20 07:23 PM
Joined: Feb 2005
Posts: 4,119
Prospect, PA
BSB67 Offline
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There are several products with the same active ingrediants, but I'm not sure if you'll find them in the big box stores. Although they claim to have some post emergent killing capability, nobody recommends post emernance application. The window for application is narrow, and will move around depending on the spring weather conditions. I think soil temp of 55°F - 3" below surface. A general rule is to apply when the forthysia is done blooming. If you apply dry, it will not become effective until after a good rain. This year we had a 3 week dry spell in the application window. You can apply in liquid too. It will only stay effecting for about a month.

Re: Getting Rid of Crabgrass [Re: BSB67] #2820773
09/14/20 08:29 PM
09/14/20 08:29 PM
Joined: Oct 2005
Posts: 7,446
Ontario, Canada
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Stanton Offline
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Quote
Pre-emergent needs to be done asap


Read the manufacturers label. There is a very short window for proper application. Apply it too early and it just gets washed away. Applying it anytime in Texas may be fine and dandy - for Texas, but in other parts of the world you want to follow the manufacturers instructions or you may as well just burn your money and spread the ash on your lawn - it will be just about as effective!

And FWIW, I think New Jersey weather is more similar to Canadian weather than Texas weather !!!

Re: Getting Rid of Crabgrass [Re: Stanton] #2821231
09/15/20 07:13 PM
09/15/20 07:13 PM
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Posts: 1,172
North Carolina
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469runner Offline
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Around here in NC, the perfect timing for applying crabgrass preventer is when the Forsythia bushes are blooming their yellow blossoms.

Re: Getting Rid of Crabgrass [Re: Powerflow] #2821324
09/15/20 10:56 PM
09/15/20 10:56 PM
Joined: Jan 2003
Posts: 1,601
Nebraska
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Nebraska
Put it down while the snow is still on the ground, almost melted away, then a 1/2 rate application every 2 weeks until the soil temp gets up. You can use it year round. Some crabgrass will still sprout.... put a rubber glove on, then a cotton glove, dip that in roundup, and rub it on the plant so you do not have brown spits from spraying.

Re: Getting Rid of Crabgrass [Re: 4406bbl] #2821872
09/17/20 12:46 PM
09/17/20 12:46 PM
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northwest USA
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NANKET Offline
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True crabgrass is an annual, it will die this winter. It sprouts in the spring. Use a pre emergent on it BEFORE it sprouts. You cannot see it sprout, if you can see the crabgrass growing it’s too late for a pre emergent. When the forsythias bloom is a great time.

Don’t apply lawn products when snow is on the ground. It’s A foolish waste. Follow the directions, they know how their products work.


Re: Getting Rid of Crabgrass [Re: NANKET] #2821888
09/17/20 01:10 PM
09/17/20 01:10 PM
Joined: Oct 2005
Posts: 7,446
Ontario, Canada
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Stanton Offline
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"Dimension" is advertised as a "post-emergent" and it works very well when you see the sprouts. In fact that's a nice thing - instead of guessing when to apply it, you can apply it when you see the sprouts.

Re: Getting Rid of Crabgrass [Re: Stanton] #2821943
09/17/20 03:35 PM
09/17/20 03:35 PM
Joined: Jan 2003
Posts: 1,180
westerly, ri. usa
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440lebaron Offline
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TRU-GREEN 69.95 every 5-6 weeks yard looks like million dollar golf course , only thing they can talk you in to $2000 in extras, just say no

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Last edited by 440lebaron; 09/17/20 03:40 PM.






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