Mowing lawns with crab grass

Discussion in 'Lawn Mowing' started by ccztrrider, Oct 12, 2008.

  1. ccztrrider

    ccztrrider LawnSite Member
    Messages: 7

    I just recently purchased a used cub cadet, m48 tank with a 19 hp kw engine to mow my 3 acres lawn.. The reason I bought the ztr mower is because my yard has a LOT of crab grass in it and my Scott lawn mower just didn't do a very good job cutting the crab grass stems. So I was under the impression that a 'Commercial' mower would resolve this issue and I wounld't have to mow two or three times to cut the crab grass stems. Well, this commercial machine does do a better job but I still have to double cut some. I installed a new set of factory high lift blades, check the pitch of the mower deck and everything is as it sould be based on the operators manual. So, could some of you experts out there help me with this... I sure would be thankful...I live in South Carolina:confused:
  2. IN2MOWN

    IN2MOWN LawnSite Platinum Member
    Messages: 4,993

    Why not try to get rid of the crabgrass?
  3. 2stroke

    2stroke LawnSite Senior Member
    Messages: 261

    spray the crabbygrass and be done with it
  4. topsites

    topsites LawnSite Fanatic
    Messages: 21,653

    Lawn mowers were designed to put a finish on turf consisting of a pure
    blend grass such as fescue, and unfortunately crabgrass is a weed.
  5. ccztrrider

    ccztrrider LawnSite Member
    Messages: 7

    I would love to get rid of it and I plan to do that, but meanwhile, are there any mowing solutions to reduce the mowing time??
  6. Whitey4

    Whitey4 LawnSite Silver Member
    Messages: 2,448

    No, for the short answer. Crabgrass has a prostrate growth habit. The stem lie down. After mowing, they will tend to "pop up" leaving stems and leaves that are above the mowing height.

    Live with it for now, but do TWO CB pre-emergent applications next year. One in early April before the soil temp reaches 52 or so, and again at the end of June. I'd suggest not using a combo fert-CB Pre-M.... use pendimethalin straight, and strong. Then, overseed next fall.

    CB lawns just aren't going to look good.... be patient, and fix the problem, which will take a year.
  7. Kennedy Landscaping

    Kennedy Landscaping LawnSite Fanatic
    Messages: 5,597

    Nope, Its a pain until you get rid of it. My advice is to over seed before winter. Just don't wait to long. Then put down pre-emergent before the grass greens up next year. Crab grass should be starting to turn purple anyways
  8. Okiebug003

    Okiebug003 LawnSite Senior Member
    Messages: 250

    Mow in the afternoons when the grass is dry. It doesn't solve the problem but it sure does help alot.
  9. jbell36

    jbell36 LawnSite Bronze Member
    from KANSAS
    Messages: 1,405

    ya the crabgrass is going to die here real soon, and mowing it when it is dry is the best way like elite said...
  10. Richard Martin

    Richard Martin LawnSite Fanatic
    Messages: 14,699

    If he's anywhere near the coast in SC then early April is way, way, way too late. Late Feb would be much better.

    Can you get us pics of this "crabgrass"? I suspect it's really Barnyard or Goose grass.

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