The gradual withdrawal of active substances in the European Union, rising labor costs, and the growing difficulty of finding skilled workers are forcing farms to rethink their weed control strategies. In this context, technology-based solutions built on precision and automation are gaining momentum, particularly in horticultural and high-value crops.
Among them, laser weeding is emerging as an alternative to traditional chemical treatments. The U.S.-based company Carbon Robotics, which already operates in markets such as Spain and Italy, estimates that its chemical-free weed control system can increase crop yields by up to 20–25% by acting at early stages, before weeds reduce the vigor of the main crop.
How does this technology work?
Unlike conventional methods based on broad applications, the technology developed by Carbon Robotics selectively targets each unwanted plant.
“The difference compared to chemical treatment is precision,” explains Barry Kent, VP of Sales at Carbon Robotics. “We can eliminate a weed located just two millimeters from the crop—something impossible with traditional spraying.”
The system combines computer vision and artificial intelligence to identify weeds in real time and apply the laser exclusively to the target, avoiding contact with the crop.
It also enables intervention at very early stages, when weeds are still in their initial growth phase, reducing competition for water and nutrients from the very beginning of the production cycle.
Adaptation to Mediterranean crops
One of the challenges for this type of technology is adapting to the characteristics of Southern Europe’s agricultural model, which is marked by smaller farms and a high diversity of crops.
Spain and Italy are among the European countries where laser weeding is being adopted most rapidly, especially in intensive horticulture and high-value crops.
According to Kent, smaller machines are being introduced, designed to operate in reduced plots or in structures such as cultivation tunnels, which are common in Southern European production areas.
Yield improvement and positive economic return
Beyond the environmental component, Carbon Robotics highlights the agronomic impact of early weed control.
The company estimates that, in certain cases, eliminating competition from the earliest stages can translate into yield increases of 20–25%, promoting more uniform and healthier crop development.
From an economic perspective, the approach begins with a prior cost analysis.
“The first question we ask is how much the farmer is currently spending on labor, fuel, and mechanical or chemical control,” they explain. Based on this data, the potential return is calculated, which in farms with high weeding costs can be achieved within approximately two to three years.
A technology in a context of structural change
The adoption of laser weeding comes at a time of profound transformation in the European production model. Regulatory pressure, the EU’s strategy to reduce plant protection products, and the need to maintain margins in a context of rising costs are accelerating the search for effective alternatives.
In this scenario, high-precision mechanical control through laser technology is beginning to stand out as one of the most promising mid-term solutions. In production systems where reducing herbicide use is no longer just a strategic option but a regulatory and market requirement, technologies like this could become a structural component of agronomic management.
