What are the mixing instructions? I think the last time I used glyphosate based weedkiller, I used 100ml per litre - from memory, I think I also doubled the strength too, so the instructions may have said 40ml per litre.Weedkiller with glyphosate. The old RoundUp we used previously has removed the glyphosate and it's basically useless.
![]()
Add a drop of washing up liquid to your mix when you make it up. I'm told this can help break down stubborn weeds.