Calibrating Your Field Sprayer. Montana State University Pesticide Safety Education Program. Proper Calibration Offers. Better Pest Control Environmental and human safety Effective use of time Inadequate control = more treatments. Calibrating your Sprayers.
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Calibrating Your Field Sprayer
Montana State University
Pesticide Safety Education Program
1 - If you have a different sized section that you spray
2 - Measure out known area sq ft / 43,560
3 - Spray known area and time yourself
4 - Spray into bucket for same length of time
5 - Measure amount sprayed and convert to gallons
6 - Multiply number found in step #5 times the number found in step #2.
You have an output of 20 GPA
You need to spray 300 acres
#1 - How much volume will you need?
You need to apply 2 oz / acre of Warrior 1E.
#2 - How much do you put in tank?
600 oz of Warrior
You are calibrating your hand sprayer and it took you 15 seconds to spray 1 18 ½ by 18 ½ ft area.
#3 – What is your GPA?
With this 5 gallon backpack sprayer, you intend to apply 1 oz / acre of product.
#4 - How much do you place in your backpack tank?
Can only treat 1/3 acre at a 15 GPA rate, so 1/3 rate or 1/3 oz