Prince Edward Island researchers are exploring a powerful new way to control weeds—electricity. The Weed Zapper, a machine that delivers a strong electric charge, is designed to kill weeds quickly without the need for herbicides.
The system operates like a mobile power station. A heavy copper pipe, extending 11 to 15 feet across, is mounted on the front of a tractor and connected to a large generator. As the tractor moves forward, tall weeds that touch or come close to the pipe receive an electric shock. Within minutes the plants wilt, and within hours they blacken and die.
Agriculture and Agri-Food Canada biologist Nicolle MacDonald and weed scientist Dr. Andrew McKenzie-Gopsill have launched a two-year project at the Harrington Research Farm to evaluate the Weed Zapper’s performance. Their research targets weeds that grow higher than crops such as low-bush blueberries, potatoes, carrots, beets, turnips, and beans.
This electric approach reduces the reliance on chemical herbicides and supports sustainable farming practices. “It gives growers a safe way to harness electricity for fast weed control,” said MacDonald. The team will assess how well the device works in different crops and field conditions, gathering data that could help farmers adopt this method more widely.