The weed-killing BoniRob.

Weeds are no match for this robot.

Bosch, a German company best known for blenders and power drills, has invented a robot that can kill weeds faster than any human or herbicide. Called the BoniRob, it roams through fields and finds weeds, stomping out two per second with a 1-centimeter-wide drill.

According to Bosch’s estimates, farmers need to produce 3% more crops per year to keep up with global population growth. The robot could protect these plants and make plant breeding more efficient. It could also reduce the use of herbicides in farms, which have been linked to cancer.

The Prius-sized robot uses lasers and satellite positioning to move around. It knows its location up to the centimeter.

Farmers usually control weeds by mowing them, through chemical use, or a combination of the two. Mechanical weeders can disturb the soil and damage crop roots, but the BoniRob destroys only the weeds.

The robot senses not just weeds but all plants. Normally, plant scientists manually study thousands of plant types, recording the size and color of their leaves, the shape of fruits, and insect infestation. Based on their research, they can learn how to grow plants more efficiently. This process can take up to 10 years.

The BoniRob uses algorithms to do the same job instantly.

“This automatic screening saves a lot of time and effort,” says Amos Albert, manager of Deepfield Robotics, the division within Bosch that created the BoniRob.

Chamomile and carrot leaves.

There are countless plants out there, which poses a challenge for the robot’s recognition software. Carrot and chamomile leaves, for example, look pretty similar.

Like any smart robot, the BoniRob will learn from itself, Albert says. The Bosch researchers highlight images of weeds in a huge image database so that the robot will recognize more types of plants over time.

Bosch is only testing the robot on farms at the moment, but plans to sell or rent models out to farmers.

Weeds, say hello to your little friend.