rough bluegrass in tall fescue help...

Discussion in 'Pesticide & Herbicide Application' started by woodlawnservice, Jul 25, 2012.

  1. woodlawnservice

    woodlawnservice LawnSite Senior Member
    Posts: 762

    What can I use as a pre to prevent this stuff that's safe on my fescue? Pendulum? Also what can I use as a post to kill now.... I overseed in the fall and located in Oklahoma... when be the best time seed and spray the pre....
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  2. RigglePLC

    RigglePLC LawnSite Fanatic
    Posts: 12,070

  3. woodlawnservice

    woodlawnservice LawnSite Senior Member
    Posts: 762

    Not at all. I'm positive its rough bluegrass... Poe annual... its shallow rooted, grows in patches, light shade of green, pulls out in clumps, growing in very shady and always moist soil.....
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  4. garydale

    garydale LawnSite Senior Member
    Posts: 813

    See Attachment



    Q: Certainty® was labeled for rough bluegrass control in Kentucky bluegrass and creeping bentgrass, what should I use now?

    A: Velocity is the only other turf herbicide labeled for rough bluegrass control, but it is only labeled for sod and golf course use. Rough bluegrass control in residential and commercial lawns will now need to be controlled with non-selective applications of glyphosate.
     

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  5. fl-landscapes

    fl-landscapes LawnSite Silver Member
    Posts: 2,542

    your positive it is rough blue grass, or poa annua? Because rough bluegrass is poa trivialis. :laugh: sorry I couldn't help myself.
     
  6. woodlawnservice

    woodlawnservice LawnSite Senior Member
    Posts: 762

    U knew what I meant.lol but yes its rough bluegrass.... I'm still not sure what to use.... our local estees turf specialist said he's not even sure.... sounds like I should go ahead and oversees in fall and just spray a 3 way to kill it out post wise and try a pre in spring... or not oversees at all and.use a pre this fall.... its a very thick lawn... timing is everything if I wanna reseed and use a pre this fall...
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  7. fl-landscapes

    fl-landscapes LawnSite Silver Member
    Posts: 2,542

    3-way isn't going to kill grasses, hit it with gly and reseed this fall, pre next spring. Was at my sisters up north last week and she is having a similar problem with bent grass in her Kentucky blue lawn.
     

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