So whos spraying the drought stressed grass?

Discussion in 'Pesticide & Herbicide Application' started by maelawncare, Jul 30, 2012.

  1. maelawncare

    maelawncare LawnSite Senior Member
    Posts: 418

    I'm not, at least not yet.

    We have only had 2" of rain in the last 7 weeks with the average temps above 95 in that time frame. I normally spray the last week of June first of July, but have held off this year. I know what the label says, just want to hear some experience.

    My problem is that a lot of weeds are coming up even with the drought. Some yards need a blanket app to get them all. Mostly the new yards that I picked up this year.

    I am starting to think that I should go through and spot spray all the weeds, but not quite sure what it will do to the grass. And since it hits 90 by 10am it doesn't leave me a long window to do it. I have only been spraying for 4 years and this is the first BAD drought I have come across in my life.

    Which leads me to asking you guys. Any ideas from someone who has experienced this before? Nothing will get watered after I spray either, so that is another concern.
  2. R & R Yard Designs

    R & R Yard Designs LawnSite Senior Member
    Posts: 646

    Take the time and spot spray. It's hard to kill weeds when its so hot and dry.
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  3. maelawncare

    maelawncare LawnSite Senior Member
    Posts: 418

    Thank you. That is kind what I was thinking.

    Now if only I can find something that kills Johnson Grass as good as MSMA.
  4. RigglePLC

    RigglePLC LawnSite Fanatic
    Posts: 12,231

    In my experiments, recently, Speedzone, Quicksilver and Drive were safe at 95 degrees.
    However T-Zone caused some injury, especially with high levels of spreader-sticker. Speedzone cause slight injury with high levels of spreader sticker.

    Why not spray the weeds? A few showers will bring up lots of weeds and crabgrass now that the soil temperate is high--the weed and crabgrass seeds will germinate.
    And since the grass is probably brown--injury would hardly show.
  5. R&S Lawn Care

    R&S Lawn Care LawnSite Senior Member
    Posts: 294

    Oklahoma Mesonet shows my area, bare soil 2" deep 114°. 2" deep under sod 98°. 1 day avg. 100°. Im heading to the mountains for a while. This sucks.
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  6. Glenn Lawn Care

    Glenn Lawn Care LawnSite Silver Member
    Posts: 2,647

    I gonna start spraying here shortly. I'll be out spraying real early in the morning (5:30) so it doesn't dry in the 90 degree heat and won't burn.
  7. RigglePLC

    RigglePLC LawnSite Fanatic
    Posts: 12,231

    So you think if you spray when the temp is below 85--no problem--even if the temp rises to 95 later on in the day. Would you care to mention what herbicide and what grass type?

    Anybody agree or disagree with this idea?

    Any proof or evidence that it makes any difference? Are you going by what the label says?

    GALAWN LawnSite Member
    Posts: 167

    Spraying before it's hot makes no difference at all. I am in Atlanta and if you think it's hot there come down for a vacay. It's been a min of 90 for the last 90 days. I don't even remember what it's like to be cool outside at this point. I treat everyday with a granular fert with 6% iron as well as spot treat with a 2 backpacks sprayers, one with celcius and one with drive. I use mso with both and also a small cup of chelated iron. The quinclorac will most def leave some yellowing on damaged lawns in this heat but who cares. Never have I had a customer complain about the spots, it's what they pay us for. Would they prefer the crabgrass? To be fair, I only treat bermuda/zoysia and they bounce back quickly.
  9. maelawncare

    maelawncare LawnSite Senior Member
    Posts: 418

    I sprayed Q4 and onetime. 3 days later still fine. It was fescue lawns and I stopped right at 89 degrees. Started at 6:30 and finished at 8:30. I will say that spot spraying is a LOT faster than blanket, lol. As long as most of it dries up before it gets real hot, there wont be much of a problem.

    I have been trying to kill bermuda, so we aren't to kind of it round here. And even zoysia isn't doing to well here either.
  10. Duekster

    Duekster LawnSite Fanatic
    from DFW, TX
    Posts: 7,961

    I thought Celsius worked better in heat.

    Main reason not to spray 3 way with amines over 85 is drift not burn.

    Nitrogen can burn but if you used plenty of water...

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