‘Highly effective’ new device could kill Japanese knotweed without chemical herbicides

Japanese knotweed is an invasive weed that spreads quickly with deeply penetrating underground roots. The plant can grow to be 2.1m tall and can cause widespread damage to building structures and foundations if it’s left to grow out of control. It takes a lot of determination to remove Japanese knotweed, however, a new solution might make removing the plant easier.