Erik Augerson, a graduate research assistant at Oregon State University, demonstrates the Steam Weeder, steaming field bindweed along rows of blueberries at the North Willamette Research and Extension ...
SALEM, Ore. — The Steam Weeder looks like an old-time vacuum cleaner and sounds like an espresso machine, with a long hose and nozzle attached to a tractor-mounted boiler heating steam to 250 degrees.
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