Crab Grass Help Needed

Discussion in 'Pesticide & Herbicide Application' started by cbarone, May 4, 2007.

  1. cbarone

    cbarone LawnSite Member
    Messages: 9


    I have a crabgrass problem and need a good post emergent solutions without harming existing grass. Recently I have planted alot of new grass in certain areas while adding alot of top soil with fertilizer/crab grass preventer.

    I have read about Ortho Weed-B-Gon Crabgrass Killer, Concentrate with mixed reviews.

    How would you recommend wiping out existing crabgrass and keeping it gone?


    Chris B.
  2. CrazyJ

    CrazyJ LawnSite Member
    from Raleigh
    Messages: 17

    Since you are already categorizing it as a "problem", I'm thinking it's too late for just Dimension alone, which has limited post-emergence effectiveness.

    Spray some MSMA on the existing stuff. May take a couple of applications. You can usually find "Image" or some off-brand at Home Depot.

    Also put down Dimension ASAP. Some of the crabgrass will be young enough for this to control it. Home Depot should sell bags of Lesco fert w/ Dimension.
  3. Nathan Robinson

    Nathan Robinson LawnSite Senior Member
    from 47712
    Messages: 317

    DRIVE! Go to lesco and get some Drive. Spot spray it and if you have tall fescue try to limit your overspray. Surely your crabgrass isnt reaaly big plants yet?????
  4. indyturf

    indyturf LawnSite Bronze Member
    from Indy
    Messages: 1,901

    are you sure what you are seeing is crabgrass? its early to see it in your area. a lot of people confuse tall fescue with crabgrass! if thats the case you can spot treat it with round up and reseed.
  5. mow2nd

    mow2nd LawnSite Senior Member
    Messages: 603

    It's probably Dallis grass, too early for crab grass. They took MSMA off the shelf in our area, but use DRIVE, u can't go wrong with DRIVE.
  6. tremor

    tremor LawnSite Bronze Member
    Messages: 1,476

    Tall Fescue maybe? There is no way Crabgrass is a visible problem in PA right now.

    Chris, Is this your own lawn?
  7. MOW ED

    MOW ED LawnSite Fanatic
    Messages: 5,028

    Read up on Drive as stated but what did you use as a crabgrass preventer. The reason I ask is that the mechanism of some crabgrass preventer/preemergent is to prevent ALL seeds from germinating. If you seeded and have used this in correct concentration you probably wasted your time on the seeding and it will have to be redone. Go back and read the lable of the product used. Newly established crabgrass is easily taken care of after the fact. Even 2 tiller stuff ain't bad with DRIVE. Good Luck.
  8. turfsolutions

    turfsolutions LawnSite Senior Member
    Messages: 853

    Its not crabgrass you are seeing right now. Apply your pre emergant at split intervals (early spring and late spring). As for what you are seeing, how about some pictures so it can be id'd properly.
  9. cbarone

    cbarone LawnSite Member
    Messages: 9

    I am pretty sure its crabgrass or maybe Dallis grass. I have a new property and put down alot of new topsoil. Would this cause crab grass or Dallis grass?

    How do you get rid of Dallis grass?


  10. bntt68

    bntt68 LawnSite Senior Member
    Messages: 329

    Did you use straw for the new seed you put down?

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