Calibration Principles

Calibrating a Sprayer zUnderstand variables zSet variables zTrial application with water zDetermine output zAdjust zFigure tank mix

Variables Variables zPressure zNozzle orifice size zTravel speed zNozzle spacing

GPA x MPH X W (in.) 5940 zGPM — nozzle output 1.Pressure 2.Nozzle orifice size zGPA — spray volume zMPH — travel speed zW — nozzle spacing GPM =

GPA x MPH X W (in.) 5940 GPM =

40 GPA x MPH X W (in.) 5940 GPM =

40 GPA x 3 MPH X 10 W (in.) 5940 GPM = GPM =.20 for one nozzle

Nozzle Choice Factors GPMpressure fan angle / boom height

Tip No.PressureGPM

8002

Major Adjustment Nozzle orifice size Minor Adjustment Pressure travel speed

You are trying to control dallisgrass in a bermudagrass turf and need to apply MSMA at a rate of 3 lbs. per acre. How much Daconate do you need to add to each tankful of spray mix? Assume you are using a 200 gal. Sprayer that applies 40 gals. per acre. (Daconate contains 6 lbs. MSMA per gallon).

200 gals. / tank 40 gals. / acre = 5 acres / tank

You are trying to control dallisgrass in a bermudagrass turf and need to apply MSMA at a rate of 3 lbs. per acre. How much Daconate do you need to add to each tankful of spray mix? Assume you are using a 200 gal. Sprayer that applies 40 gals. per acre. (Daconate contains 6 lbs. MSMA per gallon). 200 gals. / tank 40 gals. / acre = 5 acres / tank 5 acres/tank x 3 lbs. MSMA/A = 15 lbs. MSMA/tank 15 lbs. MSMA/tank 6 lbs. MSMA/gal. of Daconate 2.5 lbs. of Daconate/tank =

You are trying to control dallisgrass in a bermudagrass turf and need to apply MSMA at a rate of 3 lbs. per acre. How much Daconate do you need to add to each tankful of spray mix? Assume you are using a 200 gal. Sprayer that applies 40 gals. per acre. (Daconate contains 6 lbs. MSMA per gallon). 200 gals. / tank 40 gals. / acre = 5 acres / tank 5 acres/tank x 3 lbs. MSMA/A = 15 lbs. MSMA/tank

How much Barricade 65 WG do you add to a 150 gallon sprayer to apply 1.5 lbs. product per acre? The sprayer was calibrated to apply 25 gallons water per acre.

150 gals. / tank 25 gals. / acre = 6 acres / tank

How much Barricade 65 WG do you add to a 150 gallon sprayer to apply 1.5 lbs. product per acre? The sprayer was calibrated to apply 25 gallons water per acre. 150 gals. / tank 25 gals. / acre = 6 acres / tank 6 acres/tank x 1.5 lbs. Barricade 65 WG/acre = 9 lbs. Barricade 65 WG/acre

You have had a severe problem with crabgrass in the past years and this year you decide to treat your fairways (30 acres) with the preemergent herbicide, Pre-M 60 DG at a rate of 3 lbs. of active ingredient per acre. Your 100 gal. capacity sprayer is calibrated to put out 25 gpa. How much Pre-M 60 DG do you add to each tankful of spray mix?

100 gals. / tank 25 gals. / acre = 4 acres / tank

You have had a severe problem with crabgrass in the past years and this year you decide to treat your fairways (30 acres) with the preemergent herbicide, Pre-M 60 DG at a rate of 3 lbs. of active ingredient per acre. Your 100 gal. capacity sprayer is calibrated to put out 25 gpa. How much Pre-M 60 DG do you add to each tankful of spray mix? 100 gals. / tank 25 gals. / acre = 4 acres / tank 4 acres/tank x 3 lbs. a.i./A = 12 lbs. a.i./tank

You have had a severe problem with crabgrass in the past years and this year you decide to treat your fairways (30 acres) with the preemergent herbicide, Pre-M 60 DG at a rate of 3 lbs. of active ingredient per acre. Your 100 gal. capacity sprayer is calibrated to put out 25 gpa. How much Pre-M 60 DG do you add to each tankful of spray mix? 4 acres/tank x 3 lbs. a.i./A = 12 lbs. a.i./tank 100 gals. / tank 25 gals. / acre = 4 acres / tank 12 lbs. a.i./tank 0.6 lbs. a.i./1 lb Pre-M 60 DG 20 lbs. Pre-M 60 DG/tank =