Japanese knotweed

[noodlz]

Just realised chopped down and dug up some of these blighters last year......now they're back. Wondered anybody got any further advice on how to best get rid.

Cheers

Lynda....sorry, didn't mean to hijack the post...thought I was staying on topic...whole thread about these bloomin' triffids Anyway, thanks for explanation

 

[Thermo]

you could try pouring on lots and lots of a systemic weedkiller. Its very difficult to get rid of. There are companies that specialise in getting rid of it, its that bad.

Dont throw it on the compost heap or in the rubbish when you get rid of it, burn it

 

[JohnD]

"Hey, Noodlz, what's that big weed in your lawn?"

"It's Knotweed"

"Well, if it's not weed, what is it?"

 

[2scoops0406]

I believe Japanese knotweed is notifiable to your local council as a biohazard !!

 

[Thermo]

its illegal to dispose of it into the wild as well

 

[noodlz]

Okay...thanks guys....even the joke JohnD

Did take it to the dump last year...before I knew what it was. Read up quite a bit about this monster...scarey stuff

Will burn the beasts....will help towards a bonfire

Then keep using weedkiller and pulling them.

 

[2scoops0406]

You can dispose of it by burying it, but as the recommended depth to bury it is 30 feet!! It's a bit impractical. I think you'd best burn it, be prepared to keep at it though. On average it takes 3 years to get rid of, that's with systematic removal and posioning. It can regenerate from a piece the size of a fingernail.

 

[slipperyfrog]

Useful info here:

http://www.netregs.gov.uk/netregs/processes/367836/?version=1&lang=_e

It's illegal to cause it to spread. Burning may cause spore to become airborne - meaning you could be "spreading" the plant.

The best plan is (carefully) dig up as much of it as you can, then treat any regrowth with herbicide.

It's amazing stuff - it'll grow through a couple of inches of concrete.

sf

 

[2scoops0406]

spores ? you sure ??

 

[slipperyfrog]

OK, spores are fungus - but you know what I meant - it was gone 1 in the morning!

sf

 

[noseall]

Japanese knotweed sounds like a bio weapon to me.

 

[Thermo]

actually looks quite nice, it was imported by the victorians because they thought so as well..........THEN BAAAAAAAAAAMMMMMMMMMMMMMMMMMM!

 

[bored]

If you dig it up you mustn't leave any bits - even an inch - as it will grow back. In fact this may help it spread. Weedkiller will work but over several years from my experience.
It has been used as animal feed - maybe get a goat?!