Novel substituted azolylalkyl-t-butyl-ketones and -carbinols of the formula ##STR1## in which Az is imidazol-1-yl or 1,2,4-triazol-1-yl,A is the carbonyl group or the hydroxymethylene group, andR is optionally substituted cycloalkylalkyl or cycloalkenylalkyl,and plant-tolerated addition products thereof with acids and metal salts, which are fungicidally active and are also useful as intermediates in making other fungicides.