There are several ways to calibrate a sprayer. Once you do this, now you are ready to calibrate your sprayer.Ĭalibrating a boom sprayer is not as difficult as it sounds. Replace the nozzles showing an output error of more than 10% of the output of the new nozzle. Compare output from each nozzle’s output with the expected output shown in the nozzle catalog for that nozzle at the same pressure. Check the output of all the nozzles for a given length of time at a given spray pressure. Nozzles wear out through extended use causing over application, or some nozzles may be plugged. This is a recommended guideline by USEPA and USDA.īefore starting calibration, make sure you have a good set of nozzles on the sprayer. The primary goal with calibration is to determine the actual rate of application in gallons per acre, then to make adjustments if the difference between the actual rate and the intended rate is greater or less than 5% of the intended rate. While applying too little pesticide may result in ineffective pest control, too much pesticide wastes money, may damage the crop and increases the potential risk of contaminating ground water and environment. The only way you can achieve maximum accuracy from a sprayer is by calibrating it once before the spraying season starts, and recalibrating it frequently throughout the spraying season. Next step in preparations for the season is to calibrate the sprayer. Check all the components of the sprayer to make sure they are in working order. There seems to be no better time to get the sprayer out of the shed and get it ready for the season. Who would believe the temperature to reach 70’s in central Ohio today. Typically, I would wait until April to remind you to calibrate your sprayer, because of cold weather outside.
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