Easy Way To Calibrate An ATV Sprayer

Forget confusing calculations and "how to" chemical spraying manuals that lead you down a path of ATV sprayer calibration confusion. I prefer to work backwards. Simply attempt to spray and acre with 10 gallons at a rate of 7-8 mph and see how much you have left in the tank. If you come up short, add more water. if you spray too much, slow your rate slightly. For 20 years the best personal rate I have found is to use a full 25 gallon sprayer with enough chemicals to kill 2 acres mixed with water and then drive 7-8 mph, slightly overlapping the spray pattern. This is a great base amount to spray per acre (12.5 gallons per acre), and you can adjust your rate slightly to find the perfect speed for your setup. Calibrating your ATV, tractor or back pack sprayer should be as easy as running a few gallons of water through it to discover your coverage rate, and then head to your next wildlife spraying activity.