If one drone isn’t enough, try a drone swarm

Bird on drone on the groundImage copyrightRajant
Image caption Could co-operating drones mimic the behaviour of bird flocks?

When Bill Herz wants to know how his crops are doing, he launches a drone.

He has nearly a thousand acres of corn and soybeans in LaSalle, eastern Illinois. “My drone has saved me time and energy,” he says.

“I don’t need to walk a whole field to find a problem area. I can fly the field, look at the results and go right to it.”

Drones used for farming belong to the arsenal of tools used for precision agriculture – hi-tech farming using data to make better decisions.

So far, flying robots have enabled farmers to live stream crop growth, patrol for pathogens and boost farm efficiency. The next step is to recruit squadrons of them that can co-operate and carry out their tasks without the need for a human pilot.