Tiny Weed-Killing Robots Could Make Pesticides Obsolete

This swarm of robots may herald a chemical-free food revolution

The fleet of Greenfield Robotics weedbots ready and waiting for beta test trials. Photos courtesy of Greenfield Robotics.

Clint Brauer’s farm outside of Cheney, Kansas, could be described as Old MacDonald’s Farm plus robots. Along with 5,500 square feet of vegetable-growing greenhouses, classes teaching local families to grow their food, a herd of 105 sheep, and Warren G—a…