Today we’ll talk about that dreaded term — spray drift. It’s one of the basic principals of spraying that spray applicators do their best to control and there are a number of factors to consider. The type of spray drift we’re talking about is when an application like pesticides misses its intended target. It makes the task at hand a bit more complicated. You need to factor in wind, droplet size, height, materials used, and so much more.Read More
Sprayer Depot Blog
Imagine you’re applying pesticides using a backpack sprayer. Or, just the same, you’re spraying from a truck using a tank, pump and hose to apply chemicals. Maybe you’re using a boom setup. For that matter, you could even be piloting an airplane and in each situation the definition of spray drift is the same.
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Spray tips are the smallest and most overlooked components of a sprayer. Drift control spray tips use air induction to produce air filled droplets, which dramatically reduce drift compared to conventional tips. Here are the benefits:
- Reduce off target spray. Your neighbors don’t want your ag chemicals on their property.
- Improve efficacy. It is estimated that 30% of conventionally sprayed droplets drift off target, land on the ground, or evaporate (leaving the active ingredient inert). Reduce that drift to 2% and achieve better results.
- Improve coverage. Air filled droplets stick to their target while conventional droplets may bounce off. When the air bubbles break the surface tension of the droplet, the spray material becomes more dispersed on the target.
- Improve spray quality. The chemical label shows a droplet size category, which can vary from extremely fine to ultra coarse, at which the product must be applied for optimum results. Air induction tips produce more consistent droplet diameters than conventional tips.
- Save money. With improved efficacy and coverage you may require less chemical and less water to finish the job. With improved efficacy and coverage likely you will only need to spray once, saving money and time.
- Be environmentally responsible. Keep herbicides, pesticides, fungicides, and fertilizers confined to their targets and out of drinking water supplies and the aquifer.
Before you buy any spray tips, it is also important to know:
- Your spray technique: broadcast or banding
- Sprayer speed (in mph)
- Tip spacing (20 inches, etc.)
- Application rate (from chemical label)
- Spray tip flow rate (GPA or GPM)
- Spray pattern: flat fan or cone
- Spray quality (fine, medium, coarse, etc. from chemical label)
Armed with this information, use the Hypro SprayIT Calculator to select drift reduction tips. Hypro has designed this online calculator to make it easy to select the proper spray tip for your application. Given the information we just covered, all you need to do is select the type of application and input your specific application data and the calculator with do the rest.
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