Disclosed are compounds of Formula 1, including all stereoisomers, N-oxides, and salts thereof, wherein A, Z, R1 R2, R3 and m are as defined in the disclosure. Also disclosed are compositions containing the compounds of Formula 1 and methods for controlling undesired vegetation comprising contacting the undesired vegetation or its environment with an effective amount of a compound or a composition of the invention.所揭示者為式1之化合物(包括所有立體異構物)、其N-氧化物、及鹽,其中A、Z、R1、R2、R3、及m係如本揭露中所定義。亦揭露者係含式1之化合物之組合物與用於防治非所欲植物之方法,該方法包含使該非所欲植物或其環境與有效量之本發明化合物或組合物接觸。