Peer-reviewed study compares deep-learning laser weeding with herbicides in three vegetable systems

Carbon Robotics/LaserWeeder

Researchers compared a commercial laser weeder against standard pre- and post-emergence herbicides in 2024 trials on beet, spinach and pea in New Jersey and New York (Pest Management Science). Lasering weeds at the right growth stage cut weed biomass by 97% or more, matching or beating herbicides with minimal crop damage, but performed worse on purslane and grasses with staggered growing points.

• Laser weeding achieved 97%+ weed biomass reduction, matching herbicide performance with little crop damage in beet, spinach and pea.
• Laser weeding underperformed on purslane and grasses because their growing points are protected or staggered, allowing regrowth.
• Study published in Pest Management Science; first peer-reviewed comparison of commercial laser weeding to field-standard herbicides.