Potato growers in Washington are using a data-based decision tool developed by Washington State University (WSU) that is helping the state's potato industry save nearly US$10 million annually.
Introduced in 2021, the Potato Decision Aid System (DAS) combines weather data from WSU's AgWeatherNet system with regular field monitoring to generate computer models and risk maps for crop management.
"We tell producers, consultants, suppliers when things are going to happen on a farm," said David Crowder, a professor in the WSU Department of Entomology and director of the Decision Aid System. "Things like when to plant, how long it will take plants to progress through life stages, and when certain insects will be active."
The platform also provides searchable information on pest management and crop development, replacing traditional printed materials and making data accessible via computer or mobile device.
"Regardless of what crop you're growing or where you're growing it, you're affected by the weather in some way," Crowder said. "We're using weather data to make predictions and help growers improve efficiency."
The system's primary impact has been reducing unnecessary pesticide applications. Using weather-based modeling, DAS helps growers determine the optimal timing for treatments. "The pupal stage of the potato beetle occurs in the soil; it doesn't cause any damage, but if the grower makes an insecticide spray during that period, they're wasting their money. Our system tells them when that period is occurring in their field based on the weather," Crowder explained. He said the system saves growers about two pesticide sprays on average each season.
Although the Potato DAS is relatively new, it builds on technology already used in Washington's tree fruit industry for several decades. Other agricultural sectors are now considering adopting similar systems for their crops.
Crowder emphasized that the success of the Potato Decision Aid System depends on the long-standing relationship between WSU Extension scientists and local farmers. "WSU Extension scientists have spent years in the fields with farmers, which gives us a unique trust and understanding the local system," he said. "All hubris aside, this system at WSU is the best one in the country."
Source: WSU Insider
