A method for controlling weeds comprising administering an effective amount for controlling said weeds of {HEAD ~ at least one compound} of formula 1 or {TAIL ~ a salt} thereof to the weeds or their habitat 
A method for controlling weeds comprising administering an effective amount for controlling said weeds of { HEAD ~ at least one compound } of formula 1 or { TAIL ~ a salt } thereof to the weeds or their habitat
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH