| 摘要 |
A method of combating unwanted vegetation which comprises applying to such vegetation or to a locus from which it is desired to exclude such vegetation a herbicidally effective amount of a halogenoalkoxyphenylsulphonylisothioureidoazine of the formula <IMAGE> in which R1 represents halogeno-C1-C4-alkoxy, R2 represents hydrogen, halogen, hydroxyl, C1-C4-alkyl, C1-C4-halogenoalkyl, C1-C4-alkoxy, C1-C4-halogenoalkoxy, C1-C4-alkylthio, C1-C4-halogenoalkylthio, amino, C1-C4-alkylamino or di-(C1-C4-alkyl)amino, X represents nitrogen or a -CH- grouping, Y represents nitrogen or a -CR4- grouping, wherein R4 represents hydrogen, halogen, cyano, C1-C4-alkyl, formyl, C1-C4-alkyl-carbonyl or C1-C4-alkoxy-carbonyl, and Z represents nitrogen or a -CR5- grouping, wherein R5 represents hydrogen, halogen, hydroxyl, C1-C4-alkyl, C1-C4-alkoxy, C1-C4-alkylthio, C1-C4-alkylamino or di-(C1-C4-alkyl)-amino, and R3 represents C1-C10-alkyl (which is optionally substituted by fluorine, chlorine, bromine, cyano, C1-C4-alkoxy, carboxyl, C1-C4-alkoxycarbonyl, aminocarbonyl, C1-C4-alkylaminocarbonyl or di-(C1-C4-alkyl)-amino-carbonyl), or represents C2-C6-alkenyl (which is optionally substituted by fluorine, chlorine and/or bromine) or C2-C6-alkinyl, or represents phenyl-C1-C2-alkyl (which is optionally substituted in the phenyl part by fluorine, chlorine, bromine, nitro, cyano, C1-C4-alkyl, C1-C4-alkoxy or C1-C4-alkoxy-carbonyl).
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