The industry association Keep it Clean reminds that insecticide and fungicide applications must meet pre-harvest interval (PHI) requirements, which is the minimum acceptable number of days between applying a product and swathing or straight-cutting the crop.
While most fields are still several weeks away from PHI being an immediate concern, pre-planning maximizes options.
Keep it Clean’s Spray to Swath Interval Calculator makes calculating PHI easy: enter the intended product and crop type to calculate how long to wait after spraying, or enter expected product application and crop harvest dates to generate a list of product options that suit the intended timeline.
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You can find the calculator at the Keep it Clean website.
