3-alkoxy, thioalkyl and amino-4-amino-6-(substituted)picolinic acids having a halogen, alkyl or mono-, di- tri- and tetra-substituted aryl substituents in the 6-position, and their acid derivatives, are herbicides demonstrating a broad spectrum of weed control.
具有卤素、烷基或在6位具有单取代、双取代、三取代和四取代芳基取代基团的3-烷氧基、
硫代烷基和
氨基-4-
氨基-6-(取代)
吡啶甲酸及其酸衍
生物是表现出广谱除草作用的
除草剂。