Spray to Swath Interval Calculator
The Spray to Swath 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.
Select a Crop Type
Already sprayed? Calculate how long to wait.
Have a deadline? Find a pesticide to suit your timeline.
Sync Your Calendar
If you are using Outlook or an iPhone you can download your swath date ICS file to sync with your calendar.