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Spray Boom

Discussion in 'Pesticide & Herbicide Application' started by greendoctor, Aug 19, 2008.

  1. ToddH

    ToddH LawnSite Silver Member
    Messages: 2,192

    What GPM are you using when you use this boom for the 1/2 N and 1/4 K ?

    Been doing my home work. :laugh:

    Sorry for dragging up an old thread
  2. RAlmaroad

    RAlmaroad LawnSite Silver Member
    from SC
    Messages: 2,253

    Calibrations are not in Gallons per minute but number of gallons per 1000sq. ft.
    I generally apply 4 gallons of mix/1000sq ft. Select the proper tip to fulfill this at about 60PSIG (FERTILIZE) and higher for your herbicides at the trigger. So 100 gal tank will spray 25,000 square feet of turf with properly weighed fertilize.
  3. ToddH

    ToddH LawnSite Silver Member
    Messages: 2,192

    My bad. I went back and got some more coffee:drinkup:
  4. RAlmaroad

    RAlmaroad LawnSite Silver Member
    from SC
    Messages: 2,253

    Stuff Happens, it's winter, minds are coasting...not a problem. T-jet has a very wide variety of Air Induction Tips which have less drift so check those out also. Greendoctor got me on those and they are wonderful. For what it worth, I can walk with a 5' wide boom and cover 1K in 1minute and 35 seconds. Of course that a straight pass without dodging shrubs or flower beds. The good thing about walking booms is that you can be so precise around trees, flowers, etc.
  5. ToddH

    ToddH LawnSite Silver Member
    Messages: 2,192

    I think that is the way to go with the small lots I deal in. Walking boom and power back pack.
    At least for weed control.

    I like to see a larger volume of water. Particular since I toasted a few lawns late last season. I am crossing fingers they do come back.
  6. greendoctor

    greendoctor LawnSite Fanatic
    Messages: 9,997

    I am using at least 2 gallons per 1000 sq ft. On small lawns I rather mix the fertilizer so that 7 gallons in the backpack covers 2000 sq ft. I also short cycle the irrigation following the application. On bigger lawns, I put on nozzles that can drop 5 gallons per 1000 and run from the skid sprayer. With the nozzle body system I use, I am not committed to one volume. That is the wonder of Quick Teejet nozzle bodies.

    1/2 lb of N applied at 30 day intervals works just as well for me as 11/2-2 lb of N applied as granules at 60-90 day intervals. Lots of applications per year, yes. However, customers pay monthly and that monthly fee also covers weed control, disease control, and operation-adjustment of their irrigation system.

    I have said many times that weed control takes on an entirely different dimension applied through a boom with fan nozzles VS a Chemlawn gun or single adjustable tip on a manual sprayer. There is a difference in product efficacy and safety to turf.

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