The Japanese knotweed is spreading in Breda. This plant looks harmless but can cause significant damage. It grows through walls, roads, and sewage systems, displacing other plants. The municipality of Breda sees the knotweed as a serious problem for which, unfortunately, there is still no simple solution. 

The consequences of doing nothing are severe. The plant causes damage to infrastructure such as foundations, roads, and pipes. Housing projects can also face delays or become more expensive because the presence of the plant makes building land unsuitable. Before construction can begin, the knotweed must be completely removed, which is a lengthy and costly process. Therefore, it is essential to intervene now to prevent future damage and costs.

The Japanese knotweed (Fallopia japonica) spreads rapidly through small pieces of root or stem, for example, through the movement of soil or garden waste. Completely eradicating it is challenging, as there is no method that guarantees success. What makes it even more complicated is that the knotweed does not adhere to boundaries. The plant can easily grow from a garden to a sidewalk, or from a construction site to a municipal park. Therefore, the municipality is addressing the problem together with residents, businesses, and other landowners.

Reporting Point for Residents

Residents play an important role in this. Anyone who sees the Japanese knotweed on the street, in their garden, or on a vacant lot is asked to report it to the municipality. This creates a complete picture of all growth locations in the city. The municipality primarily combats the plant using an environmentally friendly method: hot water. This sustainably pushes back the plant without using chemical agents. In some places, mowing, excavation, or grazing is also done.