Is Japanese Knotweed bad?

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Is Japanese Knotweed bad?

Рет қаралды 32,699

Күн бұрын

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Invasive species are one of the biggest threats to biodiversity. Japanese Knotweed (Fallopia japonica), is one such culprit, and is classified as an invasive species in Europe and North America. But why has it attained this less than prestigious title?
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Refs►
www2.le.ac.uk/departments/biol...
www.telegraph.co.uk/gardening/...
www.gov.uk/japanese-knotweed-...
en.wikipedia.org/wiki/Fallopia...
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Copyright ►
"Kew Gardens Palm House, London - July 2009" by Diliff at commons.wikimedia.org
"Palm House, Royal Botanic Garden Edinburgh" by Ham at commons.wikimedia.org
“Potted Chrysanthemums in a plant nursery” by Liz West at flickr.com
“Japanese Knotweed” by Gordon Joly at flickr.com
“Japanese Knotweed” by Gordon Joly art flickr.com
“Japanese Knotweed contaminated area” by Peter aka anemoneprojectors
“Knotweed tunnel” at ayrshireriverstrust.org

Пікірлер: 40

@BobSmith-kd6lq Жыл бұрын

I've been working on ridding a patch (well established) for about 5 years now (maybe 6 lol). I have dug out where there were large chunks of roots, burned new shoots with a propane torch and sprayed herbicide on them. I have finally gotten it down to only a shoot or two a year and those are treated promptly. I didn't know what they were, made a good privacy screen and they really didn't spread much, but once I discovered what they were, I've been killing them and replacing them with lilacs

@julyortega4895 2 жыл бұрын

Love you guys😍 I understood every word🤓 and now I want more… keep the videos coming… you are my new school for learning👍👀

@07thomasdd 9 жыл бұрын

The next episode is taking a long time to come around!

@EcoSapien 9 жыл бұрын

D Pictures Not long to wait. We will be producing the an episode on Himalayan Balsam later this year.

@EcoSapien 8 жыл бұрын

+D Pictures Here is the episode. Hope you enjoy it. kzfaq.info/get/bejne/a6yUrLB_mpa8dXk.html

@Zootycoonman223 9 жыл бұрын

Disregarding the legality of accidentally or purposefully propagating it, is it safe to consume? If it is edible, it could easily become a cheap supplement for cattle or horses, or simply enter into the market as an novel food item to be used as relish or in salads. It reminds of Kudzu for the southern U.S.

@EcoSapien 9 жыл бұрын

Yes it's potentially consumable and is used as a type of mountain vegetable (Sansai) in Japanese cooking. A member of the same family as rhubarb (Polygonaceae) and like rhubarb, it contains oxalic acid, which can aggravate conditions like gout and rheumatism. We didn't mention this idea and don't want to promote eating wild plants, as there's a potential of misidentifying a species and eating something poisonous.

@Zootycoonman223 9 жыл бұрын

This is true, I didn't consider the implications of promoting eating wild plants, and the fact that it's a oxalic acid plant kind of makes it undesirable too.

@joanhuffman2166 2 жыл бұрын

The young shoots are edible, and the plant is the most concentrated source of resveratol we've ever found. People even make tinctures of the roots which have the most resveratol. Enjoy your mixed drink, in moderation. Cheers. Don't waste it on animals.

@joanhuffman2166 2 жыл бұрын

This is what I found out about oxalic acid on the internet. Because oxalates are water soluble, they can be reduced by blanching, boiling, or steaming with the liquid discarded. Fermentation reduces oxalates. Cooking in milk or macerating in whey can also mitigate oxalate exposure. Sprouting can help too.

@joanhuffman2166 2 жыл бұрын

@@Zootycoonman223 lots of foods have oxalic acid, like rhubarb and spinach. You're a human being and it's not too hard to learn to identify a plant, especially one that is in the UK as a clone only.

@raphlvlogs271 3 жыл бұрын

are they smokable?

@perwetano 3 жыл бұрын

You can eat their first buds

@Stevensadventures1 Жыл бұрын

Yes

@perwetano 3 жыл бұрын

Ask ernst gotsch about its maintenance 👌

@ButterflyLullabyLtd 3 жыл бұрын

Did you know in the USA where my Herbalist friend lives, her Council just mow the knotweed down. No pesticides used at all. And they use Knotweed to hold banks together, stopping them from collapsing. Why is it so difficult in the UK to get a debate going with people who call themselves ACADEMICS?

@donniet685 5 ай бұрын

Probably the same academics that said fit young healthy people needed to take covid injections whilst they took backhanders from the pharma industry. FFS!