Crabgrass pre-emergent question

wilsocnMarch 4, 2012

I had a horrible crabgrass problem last year with my yard. I am still a fairly new homeowner and trying to learn about lawn care.

A few days ago I bought a bag of Scott's with Halts crabgrass preventer but the window for application seems to very widely depending on which site I am looking at. Some say starting March 1st and I have seen another site that listed early May. I am a little confused. I did read that it should be applied when the forsythia is blooming but I don't even know when that is to be honest. :\

I am in Kentucky, and like everyone else, the winter was extremely mild and we have been experiencing spring like temps for a while now. Is there anyone else from around my area who can advise me on when would be a good time to apply the pre-emergent.

I would appreciate it

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magoo1(7)

It all has to do with ground temperature......if anyone around you has a Forsythia bush, when it blooms out, the ground is warm enough for weed seeds to germinate....therefore, it's time for pre-emergent. I'd feel safe in suggesting you to do it now........

    Bookmark   March 5, 2012 at 3:52PM
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dchall_san_antonio(8 San Antonio)

Ground temp and rainfall. Once the ground is warmed up from winter (such as it was), then the first rain is when you apply. Sometimes forsythia is late.

    Bookmark   March 5, 2012 at 8:10PM
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kbedwards(8)

Agree - go ahead and do it now for Kentucky. I am in SC and probably should have done mine 2 weeks ago. :(

    Bookmark   March 5, 2012 at 9:38PM
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wilsocn

Thanks for the replies everyone. Tomorrow the lawn gets the Scotts and then later this year its getting some broad leaf weed killer. My yard is in shambles!

    Bookmark   March 5, 2012 at 11:55PM
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msboo(6Ky)

Hey Wilsocn..... I'm in KY too. Have you applied your Scotts Halts yet? We moved last Spring, I did nothing then, no time. I'm just now getting ready to apply Scotts myself but this time I'm getting the one marked 'Super' on the bag.... has 6 parts more nitrogen. I wonder if this will make a difference, guess I'll see. I'm concerned, due to the mild winter here, I'm a little late but it will surely prevent some of the crabgrass.

    Bookmark   March 11, 2012 at 12:41PM
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valtorrez(6b)

I put Dimension down last week and I am in St. Louis. Temps have been staying in the 60's. I usually use 0-0-7 because it is not good to put Nitrogen down this early in the season.

    Bookmark   March 11, 2012 at 2:41PM
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