Spraying CG before seeding with fescue this fall. Thoughts?

Discussion in 'Pesticide & Herbicide Application' started by Ijustwantausername, Aug 27, 2012.

  1. Ijustwantausername

    Ijustwantausername LawnSite Bronze Member
    Messages: 1,728

    I have a good customer that wants me to spray for all their weeds, then go in and overseed their yard this fall. The yard mainly has crabgrass and clover so I was planning on hitting it with Q4 - I'll have to look at the label for the time period on seeding after though.

    Note: I do not treat their lawn, nor do they have it treated during the year, so yes it is full of CG, however they do have a decent stand of fescue.

    My question:

    Does it make sense to spray now that its getting closer to fall considering the CG will be dying out? Or should I convince them to not worry about spraying.

    If you did recommend spraying, when would be best considering the scenario?

  2. FerrisDiesel

    FerrisDiesel LawnSite Senior Member
    Messages: 447

    I actually had the same question, curious to see the responses you get.
  3. RigglePLC

    RigglePLC LawnSite Fanatic
    Messages: 13,794

    Last edited: Sep 3, 2012

    Messages: 1,343

    I would let it die off on its own.
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  5. charmill26

    charmill26 LawnSite Senior Member
    Messages: 369

    Q4 has a 30 day period
  6. corey4671

    corey4671 LawnSite Silver Member
    Messages: 2,931

    Just my two cents here. Why bother with killing it off? It is going to die back on it's own. Seed it this fall then come back in the spring and apply pre-m. I'm not claiming to be an authority on it, but it just seems like a waste of time and the customers money to kill off something that is coming to an end of its cycle anyway.
  7. v6rs97

    v6rs97 LawnSite Member
    Messages: 234

    When does the crab die off?
  8. lawns Etc

    lawns Etc LawnSite Silver Member
    Messages: 2,277

    First frost crab is dead, but I kill it off and start seeding now since you will have your seed pretty much established by that frost.
  9. RigglePLC

    RigglePLC LawnSite Fanatic
    Messages: 13,794

    Best to seed 8 weeks before frost. Soil will still be warm for good germination.
  10. RAlmaroad

    RAlmaroad LawnSite Silver Member
    from SC
    Messages: 2,257

    Killing now or waiting is tied to the growing season. Should the temps prolong the first frost then killing with Drive would PREVENT seeds from falling OR just mowing more frequently to prevent the seeds from developing is yet another option. We have a little crab break through and mowing and pulling is a better option than stressing the lawn with a herbicide especially if the lawn is not irrigated.

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