100ml, to 10litre would be sufficient for nearly all weeds apart from
trees/stumps.
Try the monsanto website, not sure exact address, but they may have diags of
labels there.
Good luck
"freebird" wrote in message
...
Hi,

I got a small bottle of roundup weed killer professional strength.
Unfortunately, I lost the packaging and don't know the dilution
rate. Does anyone know what it is?

cheers, Barb.