KNOTWEED SURGE Dangerous Japanese Knotweed being spread by illegal dumping in Dublin, experts say

DANGEROUS Japanese Knotweed is being spread by illegal dumping, experts say.

Council biodiversity officers tasked with trying to contain the invasive plant have revealed that its growth is most prevalent along waterways.

The Asian plant, which has been wreaking havoc all over Ireland, can undermine the structural integrity of roads and buildings if it begins to grow in cracks and crevices.

According to figures released to the Irish Sun, Dublin City Council has 72 known sites with the presence of the plant, while Fingal have recorded 174 Japanese Knotweed stands within its boundaries.

DCC Senior Executive Parks Superintendent, Maryann Harris warned the invasive species can also be spread by simply cutting through the plant.

She said: “In Dublin city, Japanese knotweed is primarily found along waterways but also may be found in localised areas where dumping of spoil and other materials have taken place, derelict sites and areas of former

landfills and reclamation. Japanese knotweed can be spread by the movement of soil which contains shoots or roots of the plant.


“The soil that Japanese Knotweed has been growing in is legally designated as a ‘vector’ and it can only be disposed of at specially approved sites. Managing soil movement is critical.

“Another cause of spread is through cutting of the plant when people a