Remote-controlled drones that can fly over a farmer's fields looking for patches of weeds the pesticide spraying didn't kill, or signs of those troublesome groundhogs.

Drones continue their steady approach into the different aspects of our lives. But while controversy rages over drone devastation over foreign soil and prying surveillance over US soil, experts are beginning to point our attention to the real future of unmanned aerial vehicles: farming.

Drones numbering in the tens of thousands will be in the skies by 2030, the Federal Aviation Administration predicts. But where some may fear precision weapons or flying spy cameras, Steve Markofski sees flying tractors.

With reported agricultural labour shortages all over the world and demographics showing the average age of farmers steadily climbing, complacency about the security of our food production isn’t an option, the delegates to the European Robotics Forum 2012 were told. In tandem with this future uncertainty, in the Developed World at least, there are growing concerns about product quality and safety, as well as the environmental impact of agriculture.