In the orchards of the future, cherry pruning and thinning could be entrusted to robotic arms and smart algorithms. A team of American researchers is developing advanced systems based on artificial intelligence and robotics to make these operations more precise, sustainable, and less labor-intensive for workers.
The project, led by the universities of Oregon and Washington, began with a focus on delicate crops such as berries, but aims to extend applications to other valuable tree species, such as cherries.
In Prosser, Washington, a vehicle equipped with a robotic manipulator carried out field tests using a camera integrated into the “hand” of the mechanical arm.
This configuration made it possible to autonomously identify the exact pruning points and perform cuts with electric bypass shears.
The result? A concrete first step toward the intelligent robotization of orchard operations.
Joe Davidson, associate professor of robotics and mechanical engineering at Oregon State University (OSU), presented the progress of this research at the FIRA USA conference, dedicated to agricultural robotics, held in Salinas, California.
The project is part of the AgAID Institute consortium, supported by the USDA-NIFA program and the National Science Foundation, and involves academic and industrial partners, including the University of California-Merced, Kansas State University, and IBM Research.
“From the beginning, we decided to bring our systems directly to the fields,” Davidson explained. “Our goal was to understand where our ideas could really work and where solutions needed to be rethought.”
At the center of the research are human-machine collaborative systems, designed to boost orchard labor productivity, improve fruit quality, and optimize yields.
The technologies developed are based on artificial intelligence models trained with high-definition RGB images, capable of guiding pruning tools with precision.
To address challenges related to variable weather conditions or uneven lighting, researchers are combining computer vision with force sensors, giving robots a true “sense of touch.”
This approach enables more precise and delicate cuts without damaging adjacent branches.
One of the most innovative aspects involves the use of digital tree models. These simulations, based on realistic models of growth, light distribution, and carbon transport, allow algorithms to be trained in virtual environments.
This method accelerates development and reduces errors in the image labeling stage.
“With digital trees, we can run reinforcement learning sessions,” Davidson explained. “The robot learns directly from the simulation, improving its performance even before working in the field.”
Upcoming developments include tests with professional pruners to refine operational rules and create digital training tools for seasonal workers.
In addition to cherries and apples, researchers are adapting these technologies for blueberries, a crop of particular importance in Oregon and Washington.
Applications also extend to other areas: from monitoring trunk surface to assessing plant vigor, and even in precision fertilization projects.
The AgAID Institute team, beyond technical aspects, is also conducting sociological research: through interviews and field observations, they study how workers interact with these technologies.
The goal is clear: to develop tools that support human labor, reducing physical strain and increasing the sustainability of fruit production.
A vision of the future where AI and agriculture walk hand in hand, creating more efficient, inclusive, and resilient fruit farming.
Source: fruitgrowersnews.com
Image source: Oregon State University
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