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The Pre-Harvest Interval is the minimum number of days that must pass between product application and cutting your crop by swathing or straight-cutting. On farm chemical labels, you’ll see it referred to as the Pre-harvest Interval or PHI. Cutting before this interval has lapsed can leave unacceptable residues on harvested seed.
These three questions are based on information you can get from the Pre-Harvest Interval Calculator, an easy tool to find the required wait time for a product or find products that fit the expected interval.
