Exploding Sprayer Myths (ep.7): Boom Height

Key takeaways
  • Maintain proper boom height for uniform spray deposit; wrong height creates uneven coverage and reduces effectiveness.
  • Nozzle spacing and spray angle interact with boom height; adjust together to avoid gaps and overlaps.
  • Excessive height increases drift and causes surprising results, as demos showed with a launched pineapple and dyed antifreeze.

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It’s a new season of Exploding Sprayer Myths so we’ve got a new opening sequence!

In this episode we demonstrate the importance of nozzle spacing, spray angle and boom height. We also turn a hapless pineapple into a projectile and spray dyed antifreeze on a cold winter day.

Learn more about how boom height affects spray deposit uniformity, and why that should concern you, by going here.

This episode was filmed on location at the Syngenta Honeywood Research Facility in Plattsville, Ontario. We thank them for generously allowing us to commandeer their facility and staff for the day.

And of course, none of this would be possible without the talented staff at Real Agriculture. Make sure you tune into RealAg radio.

A little extra fun:

We received this email after a grower heard Tom speak at a meeting. A compelling observation about how nozzle spacing and drift affects men everywhere:

Tom: I really enjoyed your talk in Humboldt yesterday. During the coffee break immediately after, I went to the washroom and noticed 3 guys spread evenly across 5 urinals. Wow. Talk about worrying about spray drift. When I returned to my table and told my wife of my findings, she commented that it must have something to do about the distance to the target, as it couldn’t possibly be that the pressure was too high!

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Reference
Tom, Jason and. (2017). Exploding Sprayer Myths (ep.7): Boom Height. Sprayers 101. https://sprayers101.com/esm7/ (Accessed on April 14, 2026 at 06:44)

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