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Turflon/Application Rate

Discussion in 'Pesticide & Herbicide Application' started by Scraper, Apr 23, 2001.

  1. Scraper

    Scraper LawnSite Bronze Member
    Posts: 1,656

    I have a mulch job and the beds are infiltrated with all types of broadleaf weeds. Problem is that the weeds are growing up amongst plant stock. I bought the Turflon Saturday from my local Lesco guys. (Boy it's expensive! $175/quart) As a selective broadleaf herbicide I figured this is the way to go as I have to spray among junipers, cotoneasters, yews and azaleas.

    My question is...they say 1 oz will treat 1,000 square feet. I am using a Solo 5 gallon backpack sprayer and lost my instructions that might have told me calibrations. In lieu of going out and manually calibrating it...can anyone tell me the sqaure foot coverage for 5 gallons? Also...if anyone has used this before, how much did you charge per square foot? I am looking at spraying nearly 4,000 square feet of landscape beds.

    Any other advice/use recommendations is appreciated!

  2. Scraper

    Scraper LawnSite Bronze Member
    Posts: 1,656

    Sorry...it is a 4 gallon sprayer
  3. David Gretzmier

    David Gretzmier LawnSite Gold Member
    Posts: 3,645

    I have never heard of a selective broadlef killer that would work "over the top" on a broadleaf plant like azaleas. I am willing to hear what others say about this product, as at that cost it must be a new one I haven't heard of. Dave
  4. KirbysLawn

    KirbysLawn Millenium Member
    Posts: 3,486

    How many ounces per gallon do you mix? If 1 oz treats 1000 sf it would depend on how many ounces go into a gallon. Also, it would be difficult to say how many sf it will cover, this would vary depending on walking speed, spraying pressure, nozzle size and such.

    Back Pack Calabration:

    * Time pressure output, know how much your sprayer delivers.

    Ounces divided by second x 60 seconds divided by 128 oz = gal/min

    4 oz/6 sec=.66oz/secx60=39.999 oz per minute/128=.31 gal/min

    *Speed, know how fast you need to walk to deliver the correct volume.

    Distance divided by time (in seconds) x 60 seconds = feet per minute.

    25 ft/8.4 seconds = 2.97 ft/sec x 60 = 178 ft per minute.

    * Coverage area:

    Ft/min x nozzle spacing (inches) divided 12 in/ft = sf/min

    178 ft/min x 30 in / 12in/ft = 445 sq ft per min

    [​IMG]HEY, wake up, I'm not done yet!

    *Volume, how much will the tank cover?: (5000 sq ft per 3.5 gal)

    3.5 gal / 5000 sf = 0.7 gal/ 1000 sf
    Equal to 30.5 gal/acre

    *Now, put all of this crap together:

    Target volume / acyual volume per min = minutes to deliver target volume

    0.7 gal/ .31 gal per min = 2.26 minutes to deliver .7 gal

    If you are walking 445 sq ft per minute x 2.26 minutes = 1005 sf per .7 gal

    Is everyone asleep now?


  5. Scraper

    Scraper LawnSite Bronze Member
    Posts: 1,656

  6. Getmow

    Getmow LawnSite Senior Member
    from VA
    Posts: 445

    Kirby, Great Post!!!
  7. David Gretzmier

    David Gretzmier LawnSite Gold Member
    Posts: 3,645

    Scraper- After viewing the web address above, I still wouldn't spray over the top of azaleas or over anything not listed in the label. Godd luck ! Dave
  8. Scraper

    Scraper LawnSite Bronze Member
    Posts: 1,656

    Dave...I put it down thursday...wilting by Saturday morning. I really did not have to spray over much except some cotoneasters. Everything else I could spot spray. Did a few test spots on my lawn at home as well as sprayed a couple scaggly azaleas on my property to see if thedre is any ill effect. I'll let you know.


    BTW: The label lists overtop spray of azaleas

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