Strong rootkiller recommendations needed

What do you mean? The roots keep sprouting new growth, or they are tough to pull out?

Hire a stump grinder. If, however, the border is full of stones and builder's rubble, you'll probably end up paying a lot more by breaking the teeth on it.

Another possibility is to cover the border with heavy-duty black polythene weighed or staked down for at least six months.

OK, you got me - I'm not doing the job myself because of an injury but my mate is doing it and all he told me was what I wrote in the OP.

I suppose it could well be both. The roots are definitely too tough (and too intertwined) to pull out. You can also see some new green growth at the top end by the white van so....

At first read I immediately thought of Glyphosate but after the pictures it looks as if you'd first need to pick up all the twigs.

If there's a modest size of growth then I would cut the shoot and spot withy neat Glyphosate. Anything larger and I would drill a well or multiple wells depending on size and fill each with neat Glyphosate.

I would suggest SBK

If there was any size of root there are concentrated glyphosate capsules called 'ecoplugs' you can hammer into wood like a wall plug:

I suppose you just need mechanical action. You can hack at them with a reciprocating saw into the soil to remove the major stuff, or a stump grinder if you want to go deeper.

I'm hoping it's not the kind of plant that every time the root is cut it sprouts a new plant? Still have bindweed nightmares...

Theo

Some suggest the two. Many articles suggest Glyphosate is more effective that Triclopyr where the advantage of Triclopyr is doesn't affect grass and other broadleaf plants.

YMMV

Would Salt be of use here?, i put some on a bit of ground last year nothing has grown there at all!..

Most builders merchants s usually stock it..

It looks like a cherry and root suckers have sprung up. Clear debris and mow as tight to the ground as you can. Then to assist composting ;-) place some neat ammonium sulfamate crystals in holes drilled round the cambium of the stump and cover with a slice off the stump. Mix some in a

I use Dax Root-out to add a bit of nitrogen to the compost process but am unsure if that brand is still available.

Don't think they exist any more, used to be good on brambles or other woody stuff, but you can buy generic for use as a compost accelerator (just not as a weedkiller, oh no, definitely not)

e.g.

Perzactly

Steve explained :

Thanks everyone.

German eBay sells this:

Scroll down to read the ingredients.

Depending on the stuff you use, *nothing* will grow there for a long time, so beware.

No idea if they will ship to you.

Thomas Prufer

It's sodium chlorate. Given that it's banned in the UK, importing it might be a really bad idea.

Yippee, right through Virgins cables just below the surface :-)

I believe thats referred to as breaking virgins in......

A spade will do that just as well, but it won't get rid of hundreds of roots so easily. The OP would have to check where any cable is before penetrating the soil more than a few cm, whether by spade or grinder.

Yes, I know that. Didn't want to shout&wave it about.

Sodium chlorate is also banned in Germany *as a herbicide*. This is not a herbicide, they specifically tell you not to apply it as a herbicide, but only as an algae/moss/lichen killer on pathways and stone flags, and tell you that herbicide us is banned.

The OP could check the intricacies of the ban, and then try to click on the offer and see if the ship to UK, and get his money back if it doesn't arrive.

Thomas Prufer