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Lawn Color Differances

Discussion in 'Pesticide & Herbicide Application' started by Wright48, May 11, 2008.

  1. Wright48

    Wright48 LawnSite Member
    Posts: 242

    :confused:Im having trouble with a customers lawn its growing great no weeds but the lawn has some spots in it that are lighter green and some spots are darker green im having trouble deciding what to do any ideas?
  2. jbturf

    jbturf LawnSite Bronze Member
    Posts: 1,433

    if they are patches, maybe look at what types of grasses you have gowing
    there, in know in my area there are patches of bentgrass everywhere -
    that look neon green compared to the desireable turf present

    the only other thought that comes to mind is dog spots

    PSUTURFGEEK LawnSite Senior Member
    Posts: 579

    Considering youre from a similar part of the country as I am, You more than likely are seeing patches of Poa trivialis and Annual. Certainty will help with the Triv but not the annual, which will become less noticeable as the spring goes on. Just make sure you do three seperate apps at the lowest labled rate, All of the certainty plots I have done with Jeff Phillips from Monsanto here in Pa. on Rye,Blue,Fescue mix plots Our best results as far as not damaging desirable grasses have been with the split or Tri apps. and not single apps just to much stress at one time, Some new field studies at PSU now are showing how good Certainty is now working as a growth regulator and that as a label possibly, This is more Golf related but I thought I'd throw it in.
  4. RigglePLC

    RigglePLC LawnSite Fanatic
    Posts: 12,218

    JB is right. Different types of grass. You probably have some Kentucky bluegrass, (which greens up slow) plus some perennial ryegrass which greens up quicker. And fine fescue in between. And there are major variations depending on the exact cultivar within each species. Baseball stadiums probably use something that greens up quick. Does anybody have any idea what types they use--so it is green by the first game?

    PSUTURFGEEK LawnSite Senior Member
    Posts: 579

    Usually Fertigation and high rates of iron.

    LIBERTYLANDSCAPING LawnSite Bronze Member
    from Indiana
    Posts: 1,283

    If I read that right, you are using Ceratinty on desirable Rye plots without it severely damaging the rye?
    I know Certainty is labeled to take Ryegrass out of overseeded Burmuda. I have ~3 acres of my own lawn that is KBG/Rye mix, but has some Tall fescue(really got ahold during the drought last year:cry:) I've been afraid to use Certainty for fear of damaging most of the desirable Rye...
  7. teeca

    teeca LawnSite Bronze Member
    Posts: 1,202

    dito... it'll work it's self out as the season progress's.. i've seen this many years and talked to purdue about it.. it's the difference in the grass species that you seeing.
  8. tlg

    tlg LawnSite Senior Member
    Posts: 645

    The other guys are right about different grass types and color variations. Some grasses respond slowly in the spring while other may green up faster. Other factors like soil temps, water amounts, soil compaction can all effect grass growth and color. Sometimes rapid growth in the spring can also cause flush growth that can cause discoloration or yellowing in patches. If you do have different grass types getting even color may never happen.
  9. tlg

    tlg LawnSite Senior Member
    Posts: 645

    Comerica Park home of the Detroit Tigers has a playing field of Kentucky Bluegrass. The variety is Moonlight. I believe they force it to get it green for the first game. They cover it with tarps to warm the soil from what I was told. They also mow it to 1".
  10. tremor

    tremor LawnSite Bronze Member
    Posts: 1,476

    We've blasted Yankee Stadium with Ammonium Nitrate for the same reason. Most improved Blues are slow to go in the spring.

    Wright48 sounds more like patches of Poa or Bent. Overseed aggressively with Perennial Ryegrass to even things out for next year.

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