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Japanese Knotweed costs the economy around £166 million each year

Japanese Knotweed is one of the world’s most invasive species. It can damage concrete foundations, roads, drains and paving - and costs the economy around £166 million a year in weed control.

When the Victorians introduced the plant to Britain, they thought it would be an attractive addition to the herbaceous border, they could not have predicted the damage its uncontrollable spread would eventually cause. In the summer Japanese knotweed can grow up to 4 inches per day. Today, it is a criminal offence to plant Japanese knotweed in your garden, or to cause it to grow in the wild.

What does this mean for me?
Japanese  knotweed can knock tens of thousands of pounds off house prices, and in the worst cases it can render a property impossible to sell. Don’t ignore it, as if left untreated, growth can be prolific so it is important to take action quickly. Seek advice from a specialist knotweed removal company and get a few quotes before deciding. Never try and tackle it yourself, as if you don’t do the job properly it can quickly re-grow.

The Government has begun a biological control plan which involves introducing thousands of bugs known as 'plant suckers' to deal with the knotweed. According to the Royal Horticultural Society the insects are currently being trialled at a few test sites. If successful, the programme will be rolled out across Britain in the next five to 10 years.

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