| 摘要 |
Phenoxyphenoxyalkanoylthioamides of the formula I <IMAGE> wherein X1 is chlorine or trifluoromethyl, X2 is chlorine or nitro, R1 is C1-C4 alkyl, and R2 is the amino group or an amidino group <IMAGE> wherein each of R3 and R4 independently is hydrogen or C1-C4 alkyl or taken together they form a C4-C5 alkylene chain, have herbicidal and growth regulating properties. They are suitable for selectively controlling weeds in crops of useful plants, especially in cereals and rice.
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