| 摘要 |
As compounds, diphenyl ether derivatives of the formula <IMAGE> wherein X, Y and Z are the same or different and are selected from the group consisting of trifluoromethyl, halogen and hydrogen, and wherein R is selected from those having the formula <IMAGE> in which R' and R'' are selected from the group consisting of lower alkyl groups having from 1 to 3 carbon atoms, and agriculturally acceptable salts thereof.
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