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Glenn from Setauket, Ny writes

Are all pump sprayers alike?

I have a couple sprayers. 1 gal and 4 gal. They also have a variety of tips. Are all sprayers alike as far as the amount of Tenacity that will be put down? Even if you go at an even pace, how do you know you are putting the right amount down? If sprayers are different, how do you know what pace to go at? It seems that one of my sprayers is more "powerful" then the other, so I'm not sure how to know how much is too much, or not enough. Thanks


If you have multiple sprayers, then the best thing for you to do is to calibrate your equipment using just water over a small area. For example, you can mark off an area that is 1000 sq ft (20 x 50 feet), fill your tank with 1-2 gallons of water, and then walk at your normal pace and see how much water you used to cover that area. It is most important that you use the correct amount of herbicide for the size area you are treating and think of the water as the carrier, rather than insisting on a specific amount of product per gallon of water. If you take this time to calibrate your sprayer once, then you will know how much water you use for the area going forward. Using a spray indicator dye is also a great tool so that you apply herbicides evenly over your yard.

Answer last updated on: 07/26/2019

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