Green Building Forum - Japanese Knotweed Tue, 19 Dec 2023 05:41:49 +0000 http://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175552#Comment_175552 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175552#Comment_175552 Tue, 07 May 2013 10:21:22 +0100 SteamyTea Posted By: rhamduHow small is the smallest viable fragment?Been told 6mm is enough, I can get you a small piece if you want to try it out :wink:]]> Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175553#Comment_175553 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175553#Comment_175553 Tue, 07 May 2013 10:21:41 +0100 skyewright Posted By: rhamduHow small is the smallest viable fragment?
http://www.gardenorganic.org.uk/organicweeds/weed_information/weed.php?id=11
states:
"Small fragments of stem of the size produced by a horticultural shredder will regrow and form new plants"

I don't think many people would be keen on experimenting at anything beyond laboratory scale on just how small you could get away with! It would only take one slightly bigger bit to get past the system...]]> Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175555#Comment_175555 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175555#Comment_175555 Tue, 07 May 2013 10:24:03 +0100 SteamyTea Really is a menace down here. Don't think that there is anythign special about the SW, just that it is brighter, warmer and wetter, so most plants grow well here.]]> Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175575#Comment_175575 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175575#Comment_175575 Tue, 07 May 2013 13:58:50 +0100 Gotanewlife Posted By: SteamyTeaI can get you a small piece if you want to try it out

You'll go to Jail!]]> Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175581#Comment_175581 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175581#Comment_175581 Tue, 07 May 2013 14:51:12 +0100 SteamyTea Posted By: GotanewlifeYou'll go to Jail!Just starting to apply for a license to sell a specimen that I am legally allowed to own, allowed to give away, allowed to throw away, but to sell it I need a special license.]]> Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175582#Comment_175582 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175582#Comment_175582 Tue, 07 May 2013 15:03:33 +0100 skyewright Posted By: SteamyTeaIs Skye free of it?
Not free. :sad:

The nearest stand to us is only 200m away. I was pretty nervous when that house was involved in some fairly major earth moving a few years ago. Mainly it was a matter of bringing in fill from a nearby ad-hoc quarry, but it wouldn't have taken much for an 'infected' lump of mud to get stuck in a tractor or trailer tyre on its way back to the quarry and get carried along the road.

A friend up in Broadford has to fend off a whole uncontrolled garden of it next door.

Don't think that there is anythign special about the SW, just that it is brighter, warmer and wetter, so most plants grow well here.

It does just fine here! We don't do the peaks of heat that you might see, but we don't get really cold either.]]> Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175583#Comment_175583 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175583#Comment_175583 Tue, 07 May 2013 15:16:21 +0100 windy lamb Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175584#Comment_175584 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175584#Comment_175584 Tue, 07 May 2013 15:18:05 +0100 SteamyTea
The Cornwall Knotweed Forum supplied the images. Bet it is more popular than the Cornwall Liberation Front]]> Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175585#Comment_175585 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175585#Comment_175585 Tue, 07 May 2013 15:30:18 +0100 rhamdu Posted By: skyewright"Small fragments of stem of the size produced by a horticultural shredder will regrow and form new plants"
I wonder if it would survive one of those shredders which crushes the plants rather than chopping them?

Oh, and what about the story that municipal composters generate a high enough temperature to kill pathogens and weeds? JKN isn't unique. Thistles and bindweed regenerate from small fragments, but nobody seems to worry about taking them to the tip, along with plants infested with viruses, fungi and insect pests.]]> Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175587#Comment_175587 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175587#Comment_175587 Tue, 07 May 2013 15:39:34 +0100 SteamyTea Do thistles destroy buildings?]]> Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175592#Comment_175592 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175592#Comment_175592 Tue, 07 May 2013 17:14:51 +0100 Charli Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175606#Comment_175606 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175606#Comment_175606 Tue, 07 May 2013 22:07:33 +0100 SteamyTea Posted By: Charliwill see if it growsGood man.]]> Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175610#Comment_175610 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175610#Comment_175610 Wed, 08 May 2013 00:01:09 +0100 renewablejohn
Excellent biomass plant

Can also produce a very useful drug.

http://botanicalmusings.blogspot.co.uk/2012/10/resveratrol-miracle-drug-from-japanese.html]]> Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175620#Comment_175620 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175620#Comment_175620 Wed, 08 May 2013 09:51:04 +0100 rhamdu Posted By: renewablejohnCan also produce a very useful drug.
Some people prefer to get their resveratrol from red wine.]]> Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175623#Comment_175623 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175623#Comment_175623 Wed, 08 May 2013 09:59:38 +0100 SteamyTea
But from reading that article most benefits are unproven, with one discredited. No human trials and it tastes really bad.

I think the reason it is not used as a bio-mass crop is that it is not very dense, or has a low J/m^2 compared to other crops.

But if anyone is interested don the Cornwall Council website there is an interactive map where you can go get some, bit just up the road from me, shall check it out later, after I have seen how my neighbours crop is getting on.]]> Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175625#Comment_175625 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175625#Comment_175625 Wed, 08 May 2013 10:01:19 +0100 Triassic
There is a breakdown of the position here which is worth an initial look: http://www.cornwall.gov.uk/default.aspx?page=19756]]> Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175626#Comment_175626 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175626#Comment_175626 Wed, 08 May 2013 10:11:56 +0100 SteamyTea
Cornwall does seem to take this menace seriously, may print that off and pop it though the neighbours letterbox. Not forgiven him for having a bonfire when my washing was out and on the shared tarmac parking area.
I am sure from the Latin name Fallopia Japonica I can make a much shorter description, maybe 3, 4 letter words :bigsmile:]]> Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175628#Comment_175628 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175628#Comment_175628 Wed, 08 May 2013 11:31:29 +0100 Charli Posted By: SteamyTea
Posted By: Charliwill see if it grows
Good man.

I don't pretend that this is scientific, it just gives me something to do!]]> Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175631#Comment_175631 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175631#Comment_175631 Wed, 08 May 2013 12:41:34 +0100 renewablejohn
Heres the biomass potential

http://www.phlorum.com/blog/2011/04/01/japanese-knotweed-biomass-energy-source-april-first-resveratrol/]]> Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175640#Comment_175640 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175640#Comment_175640 Wed, 08 May 2013 13:30:05 +0100 djh Posted By: renewablejohnHeres the biomass potential

:bigsmile: :bigsmile: Very good! "When's the biomass potential" might be a more apt caption :bigsmile::bigsmile:]]> Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175641#Comment_175641 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175641#Comment_175641 Wed, 08 May 2013 13:33:40 +0100 SteamyTea Did you read it all.

"Tags: April Fools' Day, biomass, energy source, Japanese knotweed, resveratrol":bigsmile:]]> Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175657#Comment_175657 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175657#Comment_175657 Wed, 08 May 2013 16:38:10 +0100 RobinB Posted By: SteamyTeait tastes really bad. Did you cook it first?]]> Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175662#Comment_175662 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175662#Comment_175662 Wed, 08 May 2013 16:49:31 +0100 SteamyTea Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175668#Comment_175668 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175668#Comment_175668 Wed, 08 May 2013 17:55:53 +0100 renewablejohn Did you read it all.

"Tags: April Fools' Day, biomass, energy source, Japanese knotweed, resveratrol"<img src="/forum114/extensions/Vanillacons/smilies/standard/bigsmile.gif" alt=":bigsmile:" title=":bigsmile:"></img></blockquote>

Sorry it was my dry sense of humour. It was quite a famous April Fool at the time.]]> Japanese Knotweed http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175707#Comment_175707 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=10614&Focus=175707#Comment_175707 Thu, 09 May 2013 07:18:51 +0100 Triassic
https://www.gov.uk/japanese-knotweed-giant-hogweed-and-other-invasive-plants

So if you intend to sell your house you may find that it is - unmortgageable.

http://www.guardian.co.uk/money/2012/sep/08/japanese-knotweed-house-sale]]>