摘要 |
Compounds of Formula (1), their N-oxides and agriculturally suitable salts, are disclosed which are useful for controlling undesired vegetation wherein A, R<SUP>1</SUP>, R<SUP>2a</SUP>, R<SUP>2b</SUP>, W, Y, and Z are as defined in the disclosure. Also disclosed are compositions containing the compounds of Formula (1) and a method for controlling undesired vegetation which involves contacting the vegetation or its environment with an effective amount of a compound of Formula (1).
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