Yellow St Augustine Grass

Discussion in 'Pesticide & Herbicide Application' started by Shawninfl, Apr 27, 2006.

  1. Shawninfl

    Shawninfl LawnSite Member
    Messages: 43

    Alot Of My Customers Have Yellow Spots In Their Grass, Is This Due To The Drought In Florida? Or Is It Where The Lawn Needs More Iron? Just Looking For Suggestions To Boost Their Lawn To Get Green Without Laying New Sod, Thanks For The Help....
  2. Fvstringpicker

    Fvstringpicker LawnSite Fanatic
    Messages: 7,670

    Hopefully the yellowing is caused by iron deficiency. It can be caused by chinch bugs or st augustine decline caused by a virus.
  3. olive123

    olive123 LawnSite Senior Member
    Messages: 500

    its very common to see yellow spots due to the dry conditions now
  4. Shawninfl

    Shawninfl LawnSite Member
    Messages: 43

    it has been very dry and the customers are complaining, " why isn't my grass green?"... hello! lack of h20, water more often..... what type of iron sup should i use? someone told me ironite? have not been able to find it.....
  5. olive123

    olive123 LawnSite Senior Member
    Messages: 500

    if you have a rig spray with a chelated iron product
  6. Mattcurry

    Mattcurry LawnSite Member
    Messages: 67

    MAny things could be causing this yellowing.... IE- chinch bugs, chlorosis, Iron deficiency, GRUBS, ummm alot of lawns with reclaimed water for irrigation are more prone to this because of the ammount of chlorine in the treated water.

    I would start with a chealated iron and the prvious guy stated.

    But it could be any of those...
  7. Ric

    Ric LawnSite Fanatic
    Messages: 11,969


    Post a picture, it could be Fungus or any number of things.

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