Reply to: Japanese knotweed

[minestrone]

The best Weed Killer you can legally buy is GALLUP 360 available from amazon but not B&Q et al. Effective on JK. It's superb stuff.

Golf course stripped bare after bungling groundsman mistakes weed killer for water | Daily Mail Online

That is weird. I have a brick path in the back garden that is infested with wind fall grass seeds, I googled this evening "what is the best weedkiller you can buy" and I got a link for that on amazon.

I was going to purchase a litre tomorrow morning.

[djf]

The best Weed Killer you can legally buy is GALLUP 360 available from amazon but not B&Q et al. Effective on JK. It's superb stuff.

Golf course stripped bare after bungling groundsman mistakes weed killer for water | Daily Mail Online

They used to use Ammonium Sulphamate for controlling Japanese Knotweed. It was used from the 1940s until the EU effectively banned is use as a Herbicide in 2008. It wasn't banned on safety ground ... nobody was prepared to pay the costs to get it licensed in the EU (why pay to get it licensed if it wasn't patentable - all your competitors could sell it as well) hence it became unlicensed and effectively banned. Luckily you can still get it on e-bay as a compost accelerator which can be "accidentally" spilt as you make your way to the compost bin. The downside is that nothing will grow in the land until it has broken down into a fertiliser (around three months).

[ZARDOZ]

https://www.rhs.org.uk/advice/profile?pid=218

Glyphosate
Perhaps the most effective and simplest method for the home gardener to tackle Japanese knotweed is with the glyphosate-based weedkiller Scotts Roundup Tree Stump & Rootkiller. This has label recommendation for controlling Japanese knotweed, instructing it to be applied to the cut canes. Bayer Garden Super Strength Weedkiller also has label control for this weed

The best Weed Killer you can legally buy is GALLUP 360 available from amazon but not B&Q et al. Effective on JK. It's superb stuff.

http://www.dailymail.co.uk/news/arti...ler-water.html

[Archangel]

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

The house we ditched was in Hebden Bridge! Just over t'hill

[SueEllen]

However owing to new legislation, the average can now dump it up the local landfill and cause an outbreak.

Do you only read one post at a time?

Then again you are

[suityou01]

Which bit of the new legislation makes the bit I quoted incorrect?

Nothing. I am incorrect, but only by virtue of New legislation which moved the goalposts a bit.

However the best route still remains to get a licensed contractor.

However owing to new legislation, the average can now dump it up the local landfill and cause an outbreak.

[Pondlife]

HTH

Which bit of the new legislation makes the bit I quoted incorrect?

[suityou01]

https://www.rhs.org.uk/advice/profile?pid=218

Glyphosate
Perhaps the most effective and simplest method for the home gardener to tackle Japanese knotweed is with the glyphosate-based weedkiller Scotts Roundup Tree Stump & Rootkiller. This has label recommendation for controlling Japanese knotweed, instructing it to be applied to the cut canes. Bayer Garden Super Strength Weedkiller also has label control for this weed

Japanese knotweed is classed as 'controlled waste' under the Environmental Protection Act 1990. This requires disposal at licensed landfill sites. Specialist Japanese knotweed contractors are usually licensed to safely remove the weed from site but check first before employing their services.

It usually takes at least three to four seasons to eradicate Japanese knotweed using glyphosate. Professional contractors, however, will have access to more powerful weedkillers that may reduce this period by half

HTH

[SueEllen]

Bolox. You have to get a specialist in who uses chemicals that only he can obtain, as they are so dangerous. There has to be many months of treatments, you have to alert your neighbours and only after a period of being JK free then you get a certificate.

It's not just pop down to B&Q, get a 20 gallon drum of glyphosate and be persistent you utter moron.

Even the environment agency (my second link) states you can do it yourself. Then gives you information on all the things you can't do and links to more leaflets.

[suityou01]

https://www.rhs.org.uk/advice/profile?pid=218

Glyphosate
Perhaps the most effective and simplest method for the home gardener to tackle Japanese knotweed is with the glyphosate-based weedkiller Scotts Roundup Tree Stump & Rootkiller. This has label recommendation for controlling Japanese knotweed, instructing it to be applied to the cut canes. Bayer Garden Super Strength Weedkiller also has label control for this weed

New legislation

HTH

[Pondlife]

Bolox. You have to get a specialist in who uses chemicals that only he can obtain, as they are so dangerous. There has to be many months of treatments, you have to alert your neighbours and only after a period of being JK free then you get a certificate.

It's not just pop down to B&Q, get a 20 gallon drum of glyphosate and be persistent you utter moron.

https://www.rhs.org.uk/advice/profile?pid=218

Glyphosate
Perhaps the most effective and simplest method for the home gardener to tackle Japanese knotweed is with the glyphosate-based weedkiller Scotts Roundup Tree Stump & Rootkiller. This has label recommendation for controlling Japanese knotweed, instructing it to be applied to the cut canes. Bayer Garden Super Strength Weedkiller also has label control for this weed

[suityou01]

This is not true.

HTH

Bolox. You have to get a specialist in who uses chemicals that only he can obtain, as they are so dangerous. There has to be many months of treatments, you have to alert your neighbours and only after a period of being JK free then you get a certificate.

It's not just pop down to B&Q, get a 20 gallon drum of glyphosate and be persistent you utter moron.

[RSoles]

This is not true.

HTH

This is not true.

HTH

[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]

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.