Drones Detect Soybean Damage with Unbelievable Precision

In a groundbreaking development from the University of Illinois Urbana-Champaign, researchers have harnessed drone technology to detect minuscule damage to soybean plants caused by the herbicide dicamba. Remarkably, these drones can identify harm at a rate as low as one ten-thousandth of the herbicide's label rate, simulating vapor drift—a milestone achieved just eight days post-application.

The Long Hunt for Accurate Damage Assessment

For years, Aaron Hager, an expert in crop sciences, has been advocating for such advanced tools ever since dicamba-tolerant soybeans emerged in 2016, bringing along a rise in both usage and off-target damage. "In our annual talks with the Environmental Protection Agency, the question of damage extent remained unanswered, often relying on subjective complaints. Now, with this technology, we can present quantifiable data," Hager stated confidently.

High-Tech Cameras at Work

The research team employed high-tech cameras mounted on drones, calibrated to pinpoint damage across various exposure levels of dicamba. They meticulously documented findings published in the journal Pest Management Science. First author Dylan Kerr emphasized, "For the first time, we can distinctly identify damage caused by vaporized dicamba even at incredibly low volumes." The team observed that symptoms intensified over time, with all treated fields showing exacerbated signs by day 29.

Invisible Damage Made Visible

Hager explained, "While we recognize the classic signs of dicamba drift, pinpointing when it occurs has been elusive—until now. This technology sheds light on the invisible damage previously overlooked." With the successful identification of the spectral signature of dicamba injury, the researchers are eager to scale their findings further.

A Vision for Broader Application

As they look ahead, the team aims to analyze satellite imagery to monitor damage across extensive regions of the Midwest, potentially expanding their techniques to include various plant species. Kerr optimistically stated, "Imagine a future where we can monitor tree and shrub canopies just as effectively!"

Empowering Farmers and Communities

With tools like these, the researchers hope to empower farmers and policymakers alike, providing critical data to protect sensitive crops. As Hager noted, growers are often weary from submitting complaints without any feedback. It's essential for scientists to delineate the issue using rigorous research.

A Commitment to Unbiased Research

Marty Williams, co-author of the study, reaffirmed the team's impartial stance, declaring, "Our goal is to discover the truth and share it openly. This project exemplifies the heart of public sector research."

With drone technology paving the way, a new chapter in agricultural research and plant protection may have just begun!