japanese knotweed removal

[d-raittuk]

A customer if mine has a property with japanese knotweed he will not be able to sell his house because of it dose anyone know who dose removals in the northwest he told me years ago that he covered it in concrete and it worked for a while but now its back and its in all the surrounding property's his neighbours dont want to know and are happy to leave it i have told him to seek legal advice.

 

anyone had experience with this

[difflock]

Simply kill with repeated doses of Glypsyophate = brand name "Roundup"

Now is a particularly good time for the first dose on the vigerous new growth.

Takes multiple applications but you WILL eventually wear it down.

Glypsyophate is also PERFECTLY safe.

Or cut the stems off at ground level (and dispose of correctly) and pour inject Roundup/glysophate into the hollow stems.

regards,

Marcus

[RobRainford]

We are knotweed specialists based St Helens, give my dad, Richard a ring on 07711004000

[PhilBeech]

That only applies if it's his land, he manages it how he sees fit etc. If your selling on and you know about the knotweed you will need a treatment programme in place and a signed off guarantee from a consultant.

 

There are a few companies nationwide. Riding Limited in Wigan, Three Shires LTD out east etc. A google search should bring them up. Your customer will need a written guarantee regarding the treatment though as any surveyor worth their salt will pick up on the knotweed and report back to the potential buyer.

[treesrus]

p.s. don't be fooled by any company proffessing to remove knotweed permanently within 3 yrs or so. i have been dealing with it for years, Glyphosate is the active ingredient required, but because of the depth and tenacity of the root system, it is hard to guarantee success. there is a Defra report somewhere of an instance where the stuff popped up again some 20 odd years later. i have experience of it re-emerging after over 10yrs!

[phil sedwell]

The stuff is native to Japan and lives on the side of volcanoes so is as tuff as old boots most specialist firms state only control of it by glypsyophate cut stems burn on site and treat remainder wrong treatment control and handling of it can result in fines from defra ect people have a legal duty to control it roots go down 5 meters it can lie dormant for 25 years and grown from a 10 cm piece of stem I'm no expert go on Google and search for Knott weed code of practice the environment agency do a pdf booklet for contracters it's well worth a reed

 

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[d-raittuk]

thanks for the advice gents its going to have to be done properly and i said i will ask about as like you say the cow boys will be on him like a rash hes 67 dont want him getting ripped off

[RobRainford]

We have pulled knotweed from back gardens. Big operation. Driveway lined with plastic, all out in bin bags into a skip then it's taken to be incinerated and you need a controlled waste ticket and the skip company has to sort it right too.

 

It's not unbeatable but can be a problem. Most of our control is just fence it off and stem inject it.

[hedgesparrow]

thanks for the advice gents its going to have to be done properly and i said i will ask about as like you say the cow boys will be on him like a rash hes 67 dont want him getting ripped off

 

stem injection is known to work and should iradicate it. you inject with a special pump injector into the main part of it the JkW takes it down into the roots and it kills it off. but may take up to 3 or 4 treatments to get rid of it all. local council had it bad injected all the stems and now only one tiny patch left if thats still there as injected that last year.

do not dig it up it breaks bits off and it grows back with a vengence.

and any top stuff taking off has to be taken to a special site for incineration. its a notifiable weed thats if the EU would be interested. should be.

sounds like there is a chap who has posted who can do it for you near to you so check it out

[agg221]

We bought our current place with it already there and the surveyor didn't pick up on it. Patch is about 20' square. I am hand pulling it once a fortnight - I started last year and will continue this year, hopefully having wiped it out by then. I pull all visible leaves, then let the pulled bits wilt off and dry out until they are crisp (ie very dead) and then don't worry too much about what I do with them - the pulled bits are not re-growing.

 

What does seem to be helping is that the area contains various fairly dense shrubs. Nothing special, and I will be removing the lot once I have wiped out the knotweed, but it is shading it out successfully.

 

If only I had as straightforward a solution to horsetail....

 

Alec