Author Topic: Beware of Japanese Knotweed.  (Read 8766 times)

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Greenfinger

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Beware of Japanese Knotweed.
« on: October 26, 2011, 10:18:04 am »
Introduced into Britain by the Victorians (thanks for that!) Japanese Knotweed is extremely invasive.
It can grow up to 100mm in a day in the summer months. Concrete, tarmac and brick are no barrier for it.

It is recognised by its shovel shaped leaves and bamboo stem and white flowers in autumn. See Photos below.

If discovered you should:
Create an exclusive area of at least 20 feet from the plant.
Spray it with a glyphosate-based weed killer.
Cut it down and dig up the plant, including the root and burn it within the exclusion area.
Wash feet and clean foot wear when you leave the site.


Brian

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Japanese Knotweed leads to mortgage rejection
« Reply #1 on: August 13, 2012, 08:25:50 am »
Because Japanese Knotweed is almost impossible to kill, lenders are refusing mortgage applications on properties where it is present of even just nearby.

The good news is that earlier this year, the RICS published advice that enabled surveyors to grade the risk on properties so buyers sellers and lenders are all able to assess the threat posed.
This means that loans on affected properties will not now be refused out of hand.

It can cost up to £1000 per visible square yard of knotweed to remove it permanently by either digging an area of 5sqm for each 1sqm of weed or using chemicals over a 3 to 6 year period.


Greenfinger

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Invasive weed Mares Tail
« Reply #2 on: July 15, 2013, 09:07:34 am »
Invasive weed Mares Tail
This can be a problem on new housing developments as one David Wilson buyer found out!
As with Japanese knotweed, it can be very difficult and costly to get rid of a Mares Tail infestation.