Pressure Changes Spray Angles

This work was performed with Victoria Radaukas, 2015 OMAFRA application technology summer student. When we consult a nozzle catalogue we are interested in the flow and droplet sizes produced at a given pressure. Perhaps we should also consider the effect of pressure on spray angle. We have several articles discussing the collective impact of spray […]

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Coverage is King

We’ve often heard the adage “Coverage is King” but what does that mean, exactly? It means that in order for your spray application to yield acceptable results, a threshold amount of the active ingredient in your tank must end up on the target. But at what point have we achieved sufficient spray coverage without wastefully […]

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Adventures in Lecturing

Harvest is mostly done and growers want to hear what we’ve learned and what’s coming next. Lecture season is upon us once again. In 2021 we’re still finding our way through virtual conferences and hybrid models, but I like to think we’re slowly returning to the in-person format. Just last week I gave my first […]

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Air-Assisted Spraying in Greenhouse Ornamentals

Greenhouse Insects The aesthetic value of ornamental plants requires a near-zero tolerance for insect pests, which cause up to 10% of crop losses per season. Controlling them with insecticides is a difficult proposition: Key pests such as thrips, aphids and whiteflies tend to feed on the underside of leaves – a notoriously difficult surface to […]

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