LOOK at the lawn pictures..(summer patch maybe)

Discussion in 'Pesticide & Herbicide Application' started by ant, Aug 7, 2006.

  1. ant

    ant LawnSite Silver Member
    Messages: 2,469

  2. grandview (2006)

    grandview (2006) LawnSite Gold Member
    Messages: 3,465

    The second pix looks like a fairy ring.
    The first looks like someone ran a fert or weed control bead along the side walk.
  3. lawnspecialties

    lawnspecialties LawnSite Silver Member
    Messages: 2,524

    My guess is brown patch. Does the grass at the edges have some green with little brown spots? Have you folks been getting a lot of evening rains?
  4. TurfProSTL

    TurfProSTL LawnSite Senior Member
    Messages: 693

    That could definitely be Summer Patch or Necrotic Ring Spot. Bluegrass? Sodded lawn?
  5. MStine315

    MStine315 LawnSite Senior Member
    Messages: 789

    I say either summer patch or necrotic ring spot. Probably NRS. Brown patch would take the whole patch and not leave the center so healthy and there would be a defined "smoke ring" along the very outer edge, at least while it is active. Fairy ring is not as defined and in a complete circle. With last week's heat and heavy rains in Michigan I've seen disease activity I never had the think twice about on a home lawn. The best cure for any of the patch diseases is core aeration the take stress off the root system, back off the N, and possibly an organic fert. program such as Nature Safe.
  6. ant

    ant LawnSite Silver Member
    Messages: 2,469

    yes blue grass sod
  7. TurfProSTL

    TurfProSTL LawnSite Senior Member
    Messages: 693

    I would aerate the heck out of it early September & overseed with turf type tall fescue.

    Until then, keep it well watered. Cut high as you can get away with. I don't think a fungicide will be of much benefit this late in the summer.....
  8. SodKing

    SodKing LawnSite Bronze Member
    Messages: 1,641

  9. TheGrassBandit

    TheGrassBandit LawnSite Member
    Messages: 86

    hmmm.... that is interesting
  10. RigglePLC

    RigglePLC LawnSite Fanatic
    Messages: 13,807

    My vote is Necrotic ring spot. Particularly a problem in sod--more common if less than 2 years old. The cheaper, older cultivars of Kentucky bluegrass are worse. Patch it with new sod disease free sod.

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