2023-08-02 14:55:06
The city of Antwerp is carrying out a pilot project for the control by electrocution of Japanese knotweed, an invasive exotic plant. A generator of electricity that sends surges of 4,000 volts through the plants should affect the stems and roots of the knotweed down to the cellular level. This is a nature-friendly control method, since other plants and animals present in the area are spared.
According to the city of Antwerp, Japanese knotweed is a problem, as in Wallonia. The roots of the plant can reach up to three meters deep. Even when they have been removed, a small piece can be enough to give rise to a new plant. The growth is also very fast. In a few weeks, the plant can reach three meters in height.
Japanese knotweed pushes out native species, but also damages asphalt, sewers, power lines and foundations. The City estimates that on its territory, specimens are already present in more than 600 places, with a covered area of no less than 100,000 square meters. Along the banks of the Scheldt, among other places, the situation is problematic.
In order not to have to use pesticides, the city of Antwerp has launched a pilot project to fight by electrocution. The first results are positive. Grazing with sheep is also applied where possible. For example, at the Schoonselhof cemetery.
The City has also committed to taking preventive measures, such as not moving the soil in which Japanese knotweed is present, etc. During mowing operations, the places where the Japanese knotweed is found are mowed separately in order to prevent pieces of the root from spreading.
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