How Airblast Spray Droplets Behave (or Misbehave)

Some pesticide labels require or prohibit certain droplet sizes to reduce the potential for drift. But, even when labels are silent about size restrictions, operators should be aware of the potential for droplet size to affect coverage. In the case of airblast, droplets should be: large enough to survive evaporation between nozzle and target. small […]

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How Do Hydraulic Low-Drift Nozzles Work?

Low drift nozzles have become the standard way to apply pesticides from a boom sprayer. In order to use them properly, we need to understand how they are designed and how they are intended to work. Sprayer nozzles have three functions on a sprayer. Metering flow Atomizing liquid Distributing liquid uniformly Accurate metering of the […]

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What’s my Spray Quality, in 3 Simple Steps

The introduction of dicamba and 2,4-D tolerance traits in corn and soybeans will be accompanied by an unprecedented emphasis on spray drift management by the registrants. We’ve already seen promotion of low-drift nozzles at field days as well as websites dedicated to product stewardship. In addition, product label statements for 2,4-D choline and the new […]

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Spray Quality – Tips with Tom #7

Tips with Tom - Title

One of the greatest threats to lost return and non-target plant damage in spraying is drift. Spray applicators have to be conscious of all kinds of factors that affect the risk of drift, including wind speed, boom height, potential inversions and, of course, spray quality. Tom Wolf zeroes in on spray quality, explaining what it […]

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