big brown spots

Discussion in 'Lawn Mowing' started by 65hoss, Oct 9, 2000.

  1. 65hoss

    65hoss LawnSite Fanatic
    Messages: 6,360

    I have about 5 large brown spots in my yard. They are almost perfectly round and about 1.5 feet across. What is it?

  2. bob

    bob LawnSite Platinum Member
    from DE
    Messages: 4,262

    Do you have a big dog. A female dog? Without seeing them its hard to tell. But dog urine (especially females) will burn the lawn. If you fertilize your lawn it will burn even easier. Dog urine contains nitrigen. Females have a higher concentrate.
  3. KirbysLawn

    KirbysLawn Millenium Member
    Messages: 3,485

    Is there a female dog around? If so dog urine damage.
  4. BadAndy

    BadAndy LawnSite Member
    Messages: 10

    It could be dog urine---female
  5. 65hoss

    65hoss LawnSite Fanatic
    Messages: 6,360

    Nope, No dogs.
  6. tpirobert

    tpirobert LawnSite Member
    Messages: 207

    Uh, has anyone mentioned female dog urine?
  7. Mark_Christopher

    Mark_Christopher LawnSite Member
    Messages: 41

    Could be Dog Urine, Fertilizer spill, Fusarium patch, Fusarium blight, brown patch, dollar spot, sod webworm... Could be all those.. why dont you be a little more specific in explaining what the grass looks like.. Whats you weather been like, humidity, temp (day and night) average for last week.....

  8. Runner

    Runner LawnSite Fanatic
    Messages: 13,492

    It sounds almost like Fusarium Blight; What do you think, Ray?
  9. 65hoss

    65hoss LawnSite Fanatic
    Messages: 6,360

    Bermuda lawn. Dark green and thick, but in about 5 spots it is dead in a small circle. About 1.5 feet across. Just happened within the last 2 weeks. Everything around it is still perfect.
  10. KirbysLawn

    KirbysLawn Millenium Member
    Messages: 3,485

    What are/were night time temps, humidity, and has the lawn been watered at night? Is or was it soild or doughnut shaped? Either way sounds like a fungus, if it was mine I would mow shorter and apply a fungicide. Clean mower and tires after mowing and avoid allowing tires to contact dead patches.


    [Edited by KirbysLawn on 10-10-2000 at 03:41 AM]

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