Is Japanese knotweed a 脅し to YOUR home and garden? Check our interactive 地図／計画する to find out if the invasive 工場／植物s are 長，率いるing に向かって your 所有物／資産／財産

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There are over 50,000 known Japanese knotweed infestations throughout the UK.

The invasive 工場／植物 is 悪名高い for its propensity to spread and 原因（となる） 損失 to building structures. It is difficult and expensive to 除去する it.

Just last week, a 法廷，裁判所 決定するd accountant Jeremy Henderson?failed to について言及する the presence of knotweed before selling his old house, meaning he's now 直面するing a 可能性のある 法廷，裁判所 法案 価値（がある） £200,000.

The 急速な／放蕩な-growing 少しのd was brought to Britain by the Victorians as an ornamental garden 工場／植物 and to line 鉄道 跡をつけるs to stabilise the 国／地域.

While it is controlled by fungus and insects in Asia, it has no natural enemies in the UK, where it can wreak havoc on gardens.

その上の outside of the 資本／首都 city, St Helens and Liverpool are also 取引，協定ing with 重要な infestations, with thousands of known 事例／患者s in the 周辺 of the former?

A furniture designer who bought his £700,000 dream home only to find Japanese knotweed lurking behind the garden shed (pictured) has 首尾よく 告訴するd the 販売人

Jonathan 負かす／撃墜するing (left), 30, bought his three-bedroom house in 豊富な Prince George's Avenue, Raynes Park, south-west London, from 借り切る／憲章d accountant Jeremy Henderson (権利), 41, in August 2018

Jonathan 負かす／撃墜するing, 30, bought his three-bedroom house in 豊富な Prince George's Avenue, Raynes Park, south-west London, from 借り切る／憲章d accountant Jeremy Henderson, 41, in August 2018.

Mr 負かす／撃墜するing, who trained at the world-renowned Chippendale International School of Furniture, planned to make his home in the Edwardian terrace, 同様に as building a workshop in the garden.

But while tidying the garden soon after moving in, he discovered Japanese knotweed 茎s behind a large St John's wort bush which was growing next to the shed.

And in July last year 空中の photos 明らかにする／漏らすd the 早い spread of the 破滅的な 少しのd in a park in Worcester, which angry 地元のs said is creeping に向かって their homes like a scene from horror movie The Day of the Triffids.

居住（者）s 恐れるd the 急速な／放蕩な-growing invasive 工場／植物 which took root in Brickfields Park, part of the King George V Playing Fields, would 減少（する） the value of their 所有物／資産／財産s, and （人命などを）奪う，主張する the 会議 has 繰り返して ignored their 嘆願s for help.

They said the eyesore 少しのd, which has grown to six feet in the park, is 侵略するing their homes and needed to be 取り組むd.?

空中の photo shows the 巨大（な） Japanese Knotweed 工場／植物 which took 持つ／拘留する in?Brickfields Park in Worcester in July last year

Retired gardner, Dennis Hodson lives in a £200,000 bungalow which 支援するs の上に the fields which was overtaken by Japanese Knotweed?

An 空中の photo shows the knotweed bush in relation to Dennis Hodson's garden

Invasive 工場／植物 specialists at Environet 跡をつける the 地域s in the UK 苦しむing the most from Japanese knotweed infestations.

The data is published on an interactive 地図／計画する which?許すs 使用者s to 跡をつける how many known infestations there are in a 確かな area.

In London, Notting Hill, Ealing, Kilburn, Camden, Brixton and Streatham are の中で some of the worst 衝撃d 郊外s.

その上の outside of the 資本／首都 city, St Helens and Liverpool are also 取引，協定ing with 重要な infestations, with thousands of known 事例／患者 s in the 周辺 of the former.?

一方／合間 in むちの跡s, there are 242 known 事例／患者s within 4km of Cardiff, and 333 within the 周辺 of Swansea. Briton フェリー（で運ぶ） also has a serious infestation.

Japanese knotweed is incredibly 持続する and 急速な／放蕩な-growing, and can 本気で 損失 buildings and construction 場所／位置s if left unchecked

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In London, Notting Hill, Ealing, Kilburn, Camden, Brixton and Streatham are の中で some of the worst 衝撃d 郊外

Bristol, St Helens and Blackburn are all 取引，協定ing with serious infestations, as are Capel Garmon, Llanelli and Cardiff

Glasgow, Aberdeen and Edinburgh also have knotweed problems, though to a lesser extent.?

'Just enter your postcode to discover the number of sightings nearby, with hotspots 最高潮の場面d in yellow, orange and, in the worst 事例／患者s, red,' the server 明言する／公表するs.?

Japanese knotweed is incredibly 持続する and 急速な／放蕩な-growing, and can 損失 buildings and construction 場所／位置s if left unchecked.

有能な of growing eight インチs in one day, it 奪うs other 工場／植物s of their 重要な nutrients and water.

'In winter the 工場／植物 dies 支援する to ground level but by 早期に summer the bamboo-like 茎・取り除くs 現れる from rhizomes 深い 地下組織の to shoot to over 2.1m (7ft), 抑えるing all other 工場／植物 growth,' the 王室の Horticultural Society explained.

有機の 除去 methods 含む digging the 工場／植物 out from the ground or 除去するing all the leaves to stop the 工場／植物 光合成ing.

The data is published on an interactive 地図／計画する which 許すs 使用者s to 跡をつける how many known infestations there are in a 確かな area?

However, these methods can take years to have an 影響, and you'll need to 定期的に check the 工場／植物 to 除去する new leaf buds when you see them.

The other 選択 is a 化学製品 method, for which you'll need to enlist the services of an 専門家.

A new thermoelectric 装置 that zaps the invasive 工場／植物 at its roots may be the 重要な to ridding gardens of the pesky 少しのd - 小売ing for?£3,000.

The RootWave プロの／賛成の machine 効果的に boils the 工場／植物's root, without the need to use harmful 少しのd 殺し屋s and?has already been trialled by English 遺産, 輸送（する） for London (TfL) and 兵器庫 football club.

Craig 区, a 事業／計画（する） 経営者／支配人 at TfL, said the use of two Rootwave machines has been '高度に 効果的な', 取って代わるing the work of 12 従業員s with just three.

As many as four per cent of British homes are 影響する／感情d by the invasive 工場／植物 - either on the 所有物／資産／財産 itself or on a 隣人ing 所有物／資産／財産.

The invasive 工場／植物 makes homes 意味ありげに more difficult to sell as 買い手s can struggle to 安全な・保証する a mortgage on a 所有物／資産／財産 where it is 設立する.

Japanese knotweed on a 所有物／資産／財産 減ずるs its value by an 普通の／平均（する） of 5 per cent, によれば the 人物／姿／数字s from Environet.?

What is Japanese knotweed??

Japanese Knotweed is a 種類 of 工場／植物 that has bamboo-like 茎・取り除くs and small white flowers

Japanese Knotweed is a 種類 of 工場／植物 that has bamboo-like 茎・取り除くs and small white flowers.

Native to Japan, the 工場／植物 is considered an invasive 種類.?

The 工場／植物, 科学の 指名する Fallopia japonica, was brought to Britain by the Victorians as an ornamental garden 工場／植物 and to line 鉄道 跡をつけるs to stabilise the 国／地域.

It has no natural enemies in the UK, 反して in Asia it is controlled by fungus and insects.

In the US it is scheduled as an invasive 少しのd in 12 明言する／公表するs, and can be 設立する in a その上の 29.

It is incredibly 持続する and 急速な／放蕩な-growing, and?can 本気で 損失 buildings and construction 場所／位置s if left unche cked.

The 悪名高い 工場／植物 strangles other 工場／植物s and can kill entire gardens.?

有能な of growing eight インチs in one day it 奪うs other 工場／植物s of their 重要な nutrients and water.