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Thatching and stuff

Discussion in 'Turf Renovation' started by f150 with bobcat, Nov 25, 2008.

  1. f150 with bobcat

    f150 with bobcat LawnSite Member
    Messages: 92

    i am sort of new still am i able to thatch in mid march as part of my spring clean up as well as put seed down after
  2. lawns Etc

    lawns Etc LawnSite Silver Member
    Messages: 2,277

    Yes but be sure to use treflan as a crabgrass preventer its expensive but its the only one that you can use along wth seed but its only good for about 30-40 days till the new grass gets going then use a real pre m
  3. Smallaxe

    Smallaxe LawnSite Fanatic
    Messages: 10,082

    When soil temps reach 50 degrees your cool season grasses will germinate. Crabgrass germinates at 55 degrees. So I have read.

    In my area that may take one week in the open, but very rarely that happens. In the open I may go 2 or 3 weeks in between, 50 degrees and 55. In the shady areas by the lake - easily a month to get the grass to germinate b4 the threat of crabgrass.

    It is cheaper to get a soil thermometer than a bunch of treflan. Besides you will eventually learn a lot of things about soils and grass that just aren't commonly considered :)
  4. turfcobob

    turfcobob LawnSite Senior Member
    Messages: 878

    A little advice here. Dethatching is a very destructive process on a lawn plus it stirs up all kinds of weed seeds that a lying dormat in the topsoil and thatch layer. Spring dethatching tends to really bring out the worst of things and damages the new grass at a time when you really do not want to.
    First ask yourself if the lawn really is to the point that it needs mechaincial removal of the thatch layer. Confirm this by checking the lawn. Take a soil sampler and take samples across the lawn. If the thatch is less than .50 of an inch leave it be and work with it. If anything aerate the devil out of it. If the thatch is upwards to .75 or one inch then you have a problem and should remove it. Especially in northern grasses. Just remember you will have a weed battle on your hands when you do.
  5. Smallaxe

    Smallaxe LawnSite Fanatic
    Messages: 10,082

    Bob is correct. Weeds are the main reason to aerate later towards fall.
  6. duckett6

    duckett6 LawnSite Member
    Messages: 14

    When is it a good time to aerate a yard?
  7. JDUtah

    JDUtah LawnSite Silver Member
    from UT
    Messages: 2,636

    Best answer is whenever the soil is overly compacted or the thatch is too thick...
  8. RigglePLC

    RigglePLC LawnSite Fanatic
    Messages: 13,555

    Don't use treflan. It will block the germination of your seed. Use Siduron, also known as Tupersan, or Scotts crabgrass control for new seed.

    Except for that, I think above is correct. It is difficult and expensive to remove thatch. If grass is green --just aerate. Most lawns will look fine even if the thatch is a little heavy. It is a fact of life for certain vigorous varieties of bluegrass.
  9. lawns Etc

    lawns Etc LawnSite Silver Member
    Messages: 2,277

    My bad you are right I get the two names confused put treflan down and you will not get anything for a while.Tupersan is exactly what I meant
  10. turfcobob

    turfcobob LawnSite Senior Member
    Messages: 878

    Depends on why you want to aerate. Aeration is a process that is used for different reasons. Give me a call and we can chat about it. 402-783-2028

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