In message , Pat
writes
Anyone suggest good sprayable weedkiller for perennial weeds - mainly
vineweed ( at least I think its that ) which grows in borders - pulls
up easy but thin roots go down a long way ......... also thick rooted
dandelion type weeds that are hard to get at that go under walls of
house etc. Tried Weedol without much luck . Is * Roundup* any better?
Or is there something unbranded I could get better results with

I suspect you mean bindweed. Tedious stuff to eliminate.

Combination of weedkiller and digging out is most effective. Crucial
tactic is never to let it get leaves into the sun or it stores energy in
the root system. Glyphosate slightly over diluted is optimal with
repeated application - you want the plant to expire very slowly so that
the stuff has plenty of time to translocate through the entire root
system.

Generic glyphosate weedkiller from your favourite DIY store with the
highest % active ingredient per unit cost is best value. Unless that is
you really want to sponsor Monsanto's vision of Roundup with everything
agriculture.

Dandelions should be trivial. Almost anything will kill them - even a
12" screwdriver.

Regards,
--
Martin Brown