Combating fungi with novel (thio-)ureas, and novel intermediates therefor

摘要

(Thio)-ureas of the formula <IMAGE> in which R1 is an optionally alkyl-substituted cycloalkyl radical or a halogenoalkyl radical, R2 is an alkyl or cycloalkyl radical or an optionally substituted aryl radical, Ar is an optionally substituted aryl radical, at least one of the radicals R1, R2 and Ar carrying fluorine or a fluorine-containing substituent, and X is an oxygen or sulphur atom, which possess fungicidal activity. Novel intermediates are also disclosed.