Determining an ideal airblast sprayer travel speed using the “Air Displacements” method

The concept of Air Displacements was developed by Dr. David Manktelow, Applied Research and Technologies Ltd. What is the “right” speed to drive when spraying? Airblast sprayer operators must know their average travel speed to calculate how much pesticide and time is required to complete a spray job. Note that it’s an average, not a […]

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Airblast Productivity and Work Rate Calculator

There are many factors that affect the work rate of an airblast application. If an operator can improve their work rate, without compromising spray efficacy or safety, they improve operational efficiency and save money. But how does each variable factor in? Is it worth the cost of a tender truck and operator to fill more […]

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Basic Sprayer Math Demystified

Stock calculator image.

Sprayer math can be intimidating, but the effort gives solid value. When combined with a calibrated sprayer you reap the following benefits: There are many ways to perform sprayer math, and you need only look to local pesticide safety courses, industrial catalogues, and extension resource centres for examples. If you’re already comfortable with your current method, don’t […]

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What’s a Ramsay Valve?

This article has been modified with kind permission from an article on Retrofit Parts. Liquid pressure in an agricultural sprayer must be controlled so as to apply the correct volume of spray per hectare. For sprayers that use positive-displacement pumps driven by the tractor’s power take-off, higher flow rates are produced than are actually required. […]

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Calibrating a Plot Sprayer for Airblast Crops

The calibration of handheld plot sprayers is an important part of agricultural research, and this article already covers all the bases… as long as you are spraying broadacre or row crops. But what happens when you are trying to emulate an airblast sprayer and treating a tree, bush, cane or vine? The key difference is […]

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