Japanese Knot Weed (Merged)

wigginsmum

Good luck with this - I'm still fighting bindweed!

conradmum

Move house, or change allotments.

MOLLYBRUSH

Thanks for all the advice - hadn't realised it was so serious and such a menace. I will give it a go with Roundup which is what is recommended by the sites I have linked to. Apparently this will take three years but sounds like it could do the trick.

conradmum

If you are going to tackle it, cut off the stems and pour the weedkiller in the hollow.

Caroline2CV

New guidelines on dealing with invasive Japanese knotweed visit:

https://www.environment-agency.gov.uk/subjects/conservation/840870/840894/840941

tom_and_barbara_good

There is a vigorous clump of JK in a garden that backs on to ours, it's weaving up through our fences and of course we want to get rid of it.

I've read that you can just about kill it with lots of persistance and repeated treatment and that's my next job but what do I do with the 6 foot stems that I've cut down already?

I can't compost them - bin them - burn them (the garden is far too small and the smoke will go into everyone elses garden) can I suffocate them in a heavy black bag and leave them for a few months? or what about drowning it in a large bucket

annie123

http://forums.moneysavingexpert.com/showthread.html?t=212975&highlight=knotweed

http://forums.moneysavingexpert.com/showthread.html?t=100661&highlight=knotweed

the 2 above might help. Its in my neighbours garden and 2 foot from mine now!! My local council said I should bag it up and take it to my local dump let them know what it is and they will put it in the to be burnt pile.

good luck

krishna

You can eat the young shoots, of course. Tastes a bit like rhubarb.

cornishpirate

I have battled with a couple of patches of Knotweed for 5 years now.

The most effective killer I have found is glyphosphate. I sprayed every new bit of growth every month on the 1st weekend of the month without fail. When the leaves and stems have died back I would dig the bottom of the plant up and burn it.

This year apart from 4 new shoots I am Knotweed free!

Rathere than get Roundup (brand of glyphosphate) I went to the local farmers store and bought it in bulk at a fraction of the price of Roundup.

CP

KatrinaC_2

If it's just the fear of burning down your fences that you're worried about, could you not burn it in a fire-bin/brazier? The advantages of burning stuff in a bin is that it's easy to control and also that you can get it very hot and this seems to minimise the smoke too.

So long as you warn your neighbours that you are planning to burn some waste and do it later on in the afternoon/evening I've always found that people are OK about drifting smoke.

The cheapest glycophosphate I've found was Asda's own brand - cheaper than Roundup and easier to get to than a farmer's merchants.

Kat