Are we facing a knot weed epidemic?!

Are we facing a knot weed epidemic?!

Author
Discussion

Chr1sch

Original Poster:

2,585 posts

193 months

Friday 1st August 2014
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Random question but just got back from 2 weeks on hols and the garden is covered in the stuff, bloody white flowers everywhere!

I'm on the train into London and it appears 90% of the hedge row is also plastered in the little bds!?

How the hell do you get rid of it?

Muntu

7,635 posts

199 months

Friday 1st August 2014
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knotweed

Chr1sch

Original Poster:

2,585 posts

193 months

Friday 1st August 2014
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Thank You

dudleybloke

19,815 posts

186 months

Friday 1st August 2014
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Sounds like it could be Russian vine or similar.

Chr1sch

Original Poster:

2,585 posts

193 months

Friday 1st August 2014
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It grows at a staggering rate (climbed up 2 or 3 rose bushes to a height of around 3-4ft) in under 2 weeks

White trumpet like flowers...

carreauchompeur

17,846 posts

204 months

Friday 1st August 2014
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Yeah, the garden I look after has loads of the stuff, very hard to keep on top of.

Hub

6,433 posts

198 months

Friday 1st August 2014
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Bindweed?

.:ian:.

1,931 posts

203 months

Friday 1st August 2014
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Yeah, sounds like bindweed, rather than knotweed!
One method of attack is to unravel it as much as you can and place the stems into plastic sandwich bags of weak glyphosate solution (like 25% - 50% of the recommended mix)

The root structure is fragile and breaks up easily, but each fragment can grow a plant, the glyphosate will kill each root section, but if there are tens or hundreds of sections..


zed4

7,248 posts

222 months

Friday 1st August 2014
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As above, it sounds like bindweed, not knotweed..... (you better hope it's not knotweed anyway!!)

(Google image from RHS)



My neighbour had loads of this and it kept creeping through and under my fence and all over my block paving and garage. I doused it with a 6 month path clear weed killer every day for a week, during all this sunshine. It's all brown and dead now, along with a few thistles and other weeds that had grown. Seems to have done the trick. I just hope it doesn't all grow back in a hurry.

Vocal Minority

8,582 posts

152 months

Friday 1st August 2014
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(google image: cabi.org)

Japanese knotweed, when mature, has red bamboo like stems and heart shaped leaves. It is nasty insidious stuff.


(google image kleerkut,.co.uk)

And there are some of the flowers.


(google image: inlanding.files.wordpress.com)

Here is some bindweed. It is a pain in the arse but not as bad.


If it is knotweed get in touch with your Local Authority, there are very strict regulations regarding its disposal and strict penalties if not adhered to.

(Though to be honest the description of flowers sounds like bind weed.


Edited by Vocal Minority on Friday 1st August 09:03


Edited by Vocal Minority on Friday 1st August 09:04

untruth

2,834 posts

189 months

Friday 1st August 2014
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We have bindweed coming from next door. Our garden isn't being worked on for another year at least so I'm trying to keep it in check but the bindweed is complicating this.

Is glysophate effective on it?

Wacky Racer

38,154 posts

247 months

Friday 1st August 2014
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The best kind of garden is a concrete one....smile

Chr1sch

Original Poster:

2,585 posts

193 months

Friday 1st August 2014
quotequote all
Yep it's bindweed then thanks guys

We also back onto fields and it's impossible to control as a result!

Mr GrimNasty

8,172 posts

170 months

Friday 1st August 2014
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Hedge bindweed (the bigger flowers/leaves) tends to spread mostly (but not always) by quite shallow roots, so if you put in a polythene root barrier to say 3ft, you should be able to gradually eliminate it from your garden. It responds quite well to weedkiller and constant pulling up.

Field bindweed (smaller leaves/flowers) nearly always has exceptionally deep roots (several metres) and is very difficult to eliminate, if you weedkiller the top, it severs the poisoned part very quickly from the rest of the root network. The war of attrition is long and hard.

Simpo Two

85,404 posts

265 months

Friday 1st August 2014
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Funny how every weed is automatically 'knotweed' these days, even if it's clearly a tree!

Real knotweed has asbestos in it of course.

Steve Campbell

2,132 posts

168 months

Friday 1st August 2014
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yep..bind weed.....I'm on year 7 of my war against it...and I'm winning despite having a large field next door which is covered in the stuff....and I'm winning....sort of !

Responds well to glyophosphate...and important after you killed it NOT to put it in your compost ! Also try and dig down as deep as possible to remove roots. Start of the year is always a challenge and we make a game out of it with my son....weekend walk arounds to "Spot the nasty plant"......grows fast !

Simpo Two

85,404 posts

265 months

Friday 1st August 2014
quotequote all
Steve Campbell said:
Responds well to glyophosphate... !
glyphosate

monthefish

20,443 posts

231 months

Friday 1st August 2014
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Simpo Two said:
Funny how every weed is automatically 'knotweed' these days, even if it's clearly a tree!

Real knotweed has asbestos in it of course.
I think Knotweed is the new Asbestos.

5-10 years ago, Asbestos was the 'kiss of death' with regards to property; insurers, Mortgage companies etc all ran a mile at any suggestion of the presence of it, but nowadays there are procedures in place for dealing with it and it's just one of these things.

Knotweed is a right pain, but it can be dealt with.

mdw

331 posts

274 months

Saturday 2nd August 2014
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You can deal with knotweed with a root and stump killer. We had it 7-8 foot tall with 1" diameter stems in a neighbours parking area. I cut a knotch into the stem about 2 foot up and drained a little of the fluid. Then using a syringe I injected he root and stump killer in. 90% reduction in the 1st year and repeat treatments for 2 more years on anything that came back ( very weak and spindly) seems to have cleared it.

mrsshpub

904 posts

184 months

Saturday 2nd August 2014
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untruth said:
We have bindweed coming from next door. Our garden isn't being worked on for another year at least so I'm trying to keep it in check but the bindweed is complicating this.

Is glysophate effective on it?
Yes — just unwind it & lay it down on the ground, away from anything you want to keep & give it the treatment. It may take a few weeks — but trying to dig it out really isn't an effective option. The tiniest piece of root left behind will regrow.