wrote in message
...
Has anyone else noticed this stuff is isn't a patch on what it used to be? I
reckon the formula's been got-at and substantially weakened. It's lost most
of its effectiveness. Is there a new frontrunner in the weedkiller market,
'cos Roundup today is %&*(*($_! hopeless.

Some weeds are a lot harder to kill than others.
Grass is easy, ground elder/japanese knotwed is hard.
So you need different concentrations, better to buy the concentrate & mix it
up to suit your weed.
Also less effective in drought conditions. Best to water your weeds first
if they are "toughies" in drought conditions.
Also essential to apply to point of run off. ie a light spray is no good
you need to cover the leaves completely with the fluid.
Hairy leave weeds also toughies.

The other way you can come unstuck is lots of little seedlings appear when
you kill the parent plant.