Moving slowly over sorghum and corn seed crops at 1-2 metres in height, the rotor wash spreads the pollen from the male rows to the female rows.
- No wind during flowering to spread the pollen will result in a poor yield for the seed grower. Helicopters can create the artificial wind needed to improve yield.
- With the rotor disc providing powerful downwash the helicopter is a great tool for assisting the crop to pollination.