Japanese knotweed

[SueEllen]

We have stands of knotweed like this:

Swansea University Scientists Untie Knotweed Bonds | I Am News

From the link:

“Even when the knotweed looks like it’s under control, it doesn’t mean it is. There’s always a chance that it’ll grow back.

60% of the plant is below ground and without investigating that we can’t be sure it’s gone.

[GlenW]

Don't have any problems with it up here in the upper reaches of the Pennines, just heather and grass.

[ELBBUBKUNPS]

It does say though that width wise it can only grow 7m wide from the plant itself and can it can only get spread by bits being chopped down and moved around and not from seeds. The potential source of JK in the place I want to buy is 250ft / 76 meters way. I called TFL and they said that if I reported seeing it they would class it as an emergency they seem very on the ball to getting rid of it more so than the rail companies who don't own the line I would be living with at the end of the garden.

[SueEllen]

It does say though that width wise it can only grow 7m wide from the plant itself and can it can only get spread by bits being chopped down and moved around and not from seeds. The potential source of JK in the place I want to buy is 250ft / 76 meters way. I called TFL and they said that if I reported seeing it they would class it as an emergency they seem very on the ball to getting rid of it more so than the rail companies who don't own the line I would be living with at the end of the garden.

Mmmm Are you indicating that TFL may want to sell some of their land for building on?

[SueEllen]

Anyway this is why mortgage companies are hysterical over JK - linky

[ELBBUBKUNPS]

Mmmm Are you indicating that TFL may want to sell some of their land for building on?

No it would be my land the garden is approx 250-300ft long, then a fence, then about 20ft of embankment down to the tube line.


Part of me hope morg company say 'no' as then the decision is made for me.

thanks

[mudskipper]

That's a lot of mowing!

[RSoles]

You should be able to kill JK with a translocating weedkiller such as glyphosate, which travels through the plant and kills it including the rootsystem. JK has a shiny stem so you need to mash it up a bit before you spray, or inject it into the stem.
It'll take a lot of work though; needs to be repeated, repeated, repeated.
You can kill it eventually.

I didn't know about the 'female clones' thing. Makes me wonder how it seems to spring up in isolated areas, I thought that was down to the spread of seeds. Every day's a schoolday.

[suityou01]

You should be able to kill JK with a translocating weedkiller such as glyphosate, which travels through the plant and kills it including the rootsystem. JK has a shiny stem so you need to mash it up a bit before you spray, or inject it into the stem.
It'll take a lot of work though; needs to be repeated, repeated, repeated.
You can kill it eventually.

I didn't know about the 'female clones' thing. Makes me wonder how it seems to spring up in isolated areas, I thought that was down to the spread of seeds. Every day's a schoolday.

This is not true.

HTH

[RSoles]

This is not true.

HTH

This is not true.

HTH