Ortho Whirlybird Spreader Settings for Overseeding: A Comprehensive Guide

- Calibration setting should be 20 lbs = 1700 sq. ft.

- Overtake: Overtaking a previously applied path by about 1/3 of the spread pattern helps assure uniform coverage. Overtaking creates what might be called a “checkerboard” effect assuring better coverage.

- Gate settings:

- Bermuda- 1.25 inches (approx. 3/4 setting)

- Fescue, Blue grass, zoysia, ryegrass- .75 inches (approx. 1/2 setting)