The present invention relates to pyridylethers of formula (I) or their agriculturally acceptable salts or derivatives,wherein the variables are defined accord- ing to the description, processes and intermediates for preparing the pyridylethers of formula (I), compositions comprising them and their use as herbicides, i.e. for controlling harmful plants, and also a method for controlling unwanted vegetation which comprises allowing a herbicidal effective amount of at least one pyridylether of formula (I)to act on plants, their seed and/or their habitat.
