![]() ![]() ![]() If possible, repeat the process two or three times and use the average time. Make sure you are using the same operating pressure and walking speed throughout. Step 3, record the amount of time it takes to accomplish a uniform coverage of the 50 by 20 foot plot. Never calibrate with actual product so you'll not need to worry about exposure to hazardous products while conducting the test. Step 2, fill the spray tank halfway with water. Here we'll be doing a plot of 50 feet by 20 feet. Step 1, on a surface similar to the treatment area, stake out a plot of 1,000 square feet. This method is appropriate when you are using a pesticide that is applied on the basis of 1,000 square feet, an example from a pesticide label would be "Apply this product at the rate of 2 ounces per 1,000 square feet". ![]() Now to calibration, lets start with the method for land areas like turf, planting beds or gardens. #State knapsack how to#If possible, do a small test with water on an area like blacktop so that you can see what type of nozzle pattern is being applied and so that you can get a relative accurate sense of how to cover a particular area evenly. Either application method is acceptable just be sure to remain consistent from your calibration test to your actual application. Another common method is to swing the wand back and forward in a pendulum motion while you walk. One of the most popular methods is by holding the application wand steady and off to one side about knee high while moving forward. Before we conduct the calibration, keep in mind that there are many techniques for backpack sprayer application. One for treating small land areas such as lawns and gardens and the other method for agricultural applications. We are going to show you the basics of two methods used for calibrating backpacks. As with the use of any spray equipment, calibration is essential to getting the treatment applied correctly. Backpack sprayers offer a convenient cost effective way to apply pesticides at your farm, in your garden, or on your lawn. ![]()
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