New 3-fluoropyridyl-2-oxy-phenoxy derivatives are disclosed which have a herbicidal and plant growth inhibiting action. They correspond to the formula ##STR1## wherein X is halogen or trifluoromethyl, G is a C.sub.1 -C.sub.3 -alkylene chain which can be mono- or disubstituted by methyl or phenyl, m is zero or one, R.sup.12 and K.sup.13 are each C.sub.1 -C.sub.6 -alkyl and R.sup.17 is hydrogen, C.sub.1 -C.sub.2 -alkyl or methoxymethyl. These compounds are suitable for the selective control of weeds in crops of cultivated plants, or for the reduction of the growth of grasses.
揭示了具有除草和抑制植物生长作用的新的3-
氟吡啶基-2-氧基苯氧衍
生物。它们符合以下结构式:其中X是卤素或三
氟甲基,G是C.sub.1-C.sub.3-烷基链,可以是单取代或双取代的甲基或苯基,m为零或一,R.sup.12和K.sup.13均为C.sub.1-C.sub.6-烷基,R.sup.17为氢、C.sub.1-C.sub.2-烷基或甲氧基甲基。这些化合物适用于在栽培植物作物中选择性地控制杂草,或减少草本植物的生长。