What did you use it for?
On the smallholding we had an area where we had tried to get rid of ragwort by pulling it out each year as its poisonous to horses if they eat it. Well 3yrs of pulling the weed had not eradicated it,so tried your weed killer, spot on.
This last yr I went round the field which we couldn't use to graze the horses and sprayed all the foliage of the ragwort, let it dry on the foliage and the following day did the same again, then left the field and over 3 wks watched for results, after 2 wks the ragwort stopped flowering, went brown and died. We collected all the dead plants and burnt them. This yr we have not restored field back to zero ragwort, BUT!!! The Only ones left are new growth which were underground and hadn't reached maturity, (ragwort sends out shoots underground to form new plants) so going to leave them to grow till about 12" and spray their foliage,and I recon nxt yr we may not have any ragwort at all.
Was it successful?
Very pleased with results, going to do a friends farm field who has a similar problem. N fed up with trying to get rid of the poisonous plant, but his farms near a motorway and highways dept dont bother to try n get rid, even tho its an offense not to rid your land of it.