Downwind Spray Drift Buffer
A relative downwind no-spray buffer that scales an editable droplet-class base by wind speed and release height. A planning aid only -- the product label's mandatory buffer is the law (FIFRA); your state lead agency governs.
Formula and source
Buffer = base buffer x (wind / 10 mph) x (release height / reference height). Base buffer set by droplet class: Very Coarse 5, Coarse 10, Medium 20, Fine 40 ft (editable, representative).
USDA / land-grant extension drift-management guidance; EPA pesticide label and the Worker Protection Standard (40 CFR 170), by name.
Audience
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Posture
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