By Scout Nelson
North Dakota State University is advancing new technology that could help sugarbeet growers detect diseases earlier and improve crop management. A research project led by Xiaoyu (Iris) Feng, assistant professor of bioenvironmental and structural engineering, has received a $728,000 award from the United States Department of Agriculture’s National Institute of Food and Agriculture (USDA-NIFA).
The project focuses on developing a portable dual-function biosensor for early detection and management of Cercospora leaf spot (CLS), one of the most damaging diseases affecting sugarbeets. The new technology is designed to identify infections more quickly than traditional scouting methods, allowing growers to respond sooner and reduce losses.
CLS can have a major economic impact on sugarbeet production. A 2024 survey from the Beet Sugar Development Foundation estimated that the disease could cause more than $900 million in losses nationwide in a single year if it is not properly managed. The disease begins with small spots on leaves and can spread rapidly, reducing the plant’s ability to produce and store sugar. As a result, growers may experience lower yields and reduced sugar content.
Current management methods include resistant varieties and fungicide applications. While some detection techniques such as polymerase chain reaction (PCR) are effective, they can be costly and require significant labor. The new biosensor aims to provide a faster, more affordable, and field-friendly solution.
“Historically, severe CLS outbreaks have caused substantial economic losses in North Dakota and Minnesota due to reduced production and increased fungicide costs,” Feng said. “Because of these impacts, early detection and timely management are critical.”
The project brings together experts in engineering, plant pathology, biosensing, and agricultural economics. NDSU Extension specialist Eric Branch serves as co-principal investigator and contributes extensive experience in sugarbeet plant pathology.
Researchers will first test and improve the biosensor in laboratories and greenhouses before conducting field trials in North Dakota and Minnesota sugarbeet fields. The technology is expected to act as an early warning system by detecting the fungus responsible for CLS before visible symptoms become severe.
“Earlier detection will improve fungicide timing, reduce unnecessary applications, lower production costs, and help preserve yield and sugar quality,” Feng added.
Photo Credit: north-dakota-state-university
Categories: North Dakota, Crops, Sugar Beets