LaserWeeder’s technology aims to cut the use of pesticides. It uses high resolution cameras to detect weeds. These weeds are then ‘zapped’ with a laser. The thermal energy from the laser explodes cell walls in the weed’s roots and shoots. This causes the weed to wither and die. The unit can be pulled by a tractor through a field to tackle the weeds. Carbon Robotics, the company behind the LaserWeeder, claim it kills 99% of weeds without damaging or touching crops.