What maybe the cause of deteriorating grass?

Discussion in 'Turf Renovation' started by Flatop, Oct 24, 2008.

  1. Flatop

    Flatop LawnSite Member
    Messages: 236

    Need help in figuring out why the grass in deteriorating. I have attached a picture. It has been getting worse. Need recommendation in fixing this problem.



  2. Smallaxe

    Smallaxe LawnSite Fanatic
    Messages: 10,082

    Lot of shade and a lot of tree roots. Looks like you need more water and less fertilizer. forest lawn is definately a low maintenance regeime, one fert app in the fall if that. Up here we use fescue for shade, you will need a southern equivalent for Sam Antonio. Never heard of Sam Antonio, but Sam is a good Texas name.
  3. RAlmaroad

    RAlmaroad LawnSite Silver Member
    from SC
    Messages: 2,249

    St. Augustine turf?
  4. Runner

    Runner LawnSite Fanatic
    Messages: 13,497

    Looks like a light problem, to me. Also, depending on what kinds of trees those are, you may want to check the soil for low PH.
  5. GravelyGuy

    GravelyGuy LawnSite Silver Member
    from Indiana
    Messages: 2,548

    Why would you use less fert? The tree is using most of the nutrients. I have several lawns that were very bare around the trees and with proper fertilizing have really started to fill in around the base of the tree.
  6. ProMo

    ProMo LawnSite Bronze Member
    Messages: 1,468

    is there a pool being drained on the other side of that fence?
  7. Smallaxe

    Smallaxe LawnSite Fanatic
    Messages: 10,082

    Water and light are primary here. N especially stimulates the plant to grow green , even when it is NOT in the plants best interest. At least that is the theory.

    In the real world over-fert w/out adequate moisture kills off the grass. Especially in the woods.

    If it works then I assume you have adequate moisture and at least some light.
    You added topsoil to the base of the tree when you seeded?
    In regards to fertilization: What is your definition of 'proper'?
  8. GravelyGuy

    GravelyGuy LawnSite Silver Member
    from Indiana
    Messages: 2,548

    3-4 lbs. N per year, granular only.

    KACYDS LawnSite Senior Member
    Messages: 559

    Might want to aerate the soil and/or admend the soil. Looking at the pictures, the ground seems hard and there are lot of small rocks present. If you do aerate, be careful of the roots from the Live Oak trees. Also, you might want to prune out the canopy of the trees, to let in more light. Keep on a regular fertilize program with 3 to 4 lbs of N per 1000 per year. Also water deeply (long period of time) and less frequently, than less water and more frequently. By doing this, the roots of the grass will go deeper into the soil. And the more roots you have, the better chance you will have a better looking turf. Hopefully this will help. :usflag:
  10. RigglePLC

    RigglePLC LawnSite Fanatic
    Messages: 13,670

    Dig down and examine the soil carefully. Check for the main 3 insects and main 3 diseases in your parts. Are any of the edges square? Straight lines--if so, probably human caused. Check the hours of sunlight as mentioned above.

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