crabgrass in fall

Discussion in 'Turf Renovation' started by RigglePLC, Sep 20, 2012.

  1. RigglePLC

    RigglePLC LawnSite Fanatic
    Posts: 12,232

    I am surprised--crabgrass around here is looking very brown. Not dead but looking very much on its last legs. Lowest temperature has been 41 degrees.

    I suspect that after a temp of 45 degrees, crabgrass is injured so that almost zero new growth is possible.

    What does your crabgrass look like? Got pictures? Does this mean you could have sown grass on top of crabgrass two weeks ago? And your new grass would come up through the dying crabgrass?

    Does this mean you could fertilize about now without stimulating any growth from crabgrass?
  2. Duekster

    Duekster LawnSite Fanatic
    from DFW, TX
    Posts: 7,961

    I just put down a fert with Em with no concern about Crab Grass. I suspect the demension will stunt mature crab grass but I am not concerned about it flushing up. I will do a post in about a month but again not targeting CG.
  3. Smallaxe

    Smallaxe LawnSite Fanatic
    Posts: 10,081

    I've noticed that here too... no more CG at all... in fact I noticed today just how bad some lawns have gotten because the CG took over several nice lawns during the course of the hot summer...
  4. Dylan's Lawn Care

    Dylan's Lawn Care LawnSite Member
    Posts: 122

    Makes me realize that I kinda love crabgrass in a way most of my garbage lawns that were all crabgrass and was needing weekly cuts went to not being cut in almost 3weeks now.
  5. Smallaxe

    Smallaxe LawnSite Fanatic
    Posts: 10,081

    That's funny... we've had quite a bit of death in high maintenance lawns because of irrigation problems this year,,, and now we see these brownish, purplish patches everywhere...
    You are right, there would have been large areas that would have been only dust had it not been for the CG...

    I didn't realize how much more overseeding needs to be done... :)

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