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  1. ITV Report

Japanese knotweed hotspots in the East

Japanese knotweed hotspots around the region Credit: Environet

Norwich, Cambridge, Colchester and Luton are some of the areas in the East blighted by high concentrations of Japanese knotweed.

New research has shown that only 19% of people in the UK can identify the plant.

The invasive species of weed can wreak havoc on buildings leaving them unsellable.

It can grow up to 10cm a day during the summer and can push through cracks in concrete and damaging drains.

Homeowners can be sued and face prosecution if Japanese knotweed spreads onto neighbouring properties.