Abstract: Pollen is harvested from plants by mounting a suction nozzle on a vehicle such as a crop harvester or crop sprayer so as to be carried thereby and arranged on the vehicle so as to be located in the field adjacent the plants as the vehicle moves across the ground. A suction pump is mounted on a trailer behind the vehicle for communicating, though a series of ducts passing along side the vehicle, an air stream through the nozzle such that the air stream causes the pollen from the plants to be drawn into the nozzle. A separating system including cyclones and filtration bags is mounted on the trailer for extracting the pollen from the air stream.