The present invention relates to diaminotriazine compounds of the formula (I) and to their use as herbicides. The present invention also relates to agrochemical compositions for crop protection and to a method for controlling unwanted vegetation. wherein Ra, Rc are, independently of each other, selected from the group consisting of hydrogen, halogen, CN, etc.; Rb is selected from the group consisting of hydrogen, halogen, C1-C6-alkyl, C1-C6-haloalkyl, CN and C1-C6-alkoxy, Rd is selected from the group consisting of halogen, C1-C6-alkyl, C1-C6-haloalkyl, CN and C1-C6-alkoxy, provided that either Rb or Rd is C1-C6-alkoxy; R1, R2 are inter alia H, OH, S(O)2NH2, CN, C1-C6-alkyl, C2-C6-alkenyl, etc. R3 is H, halogen, OH, CN, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy or C1-C6-haloalkoxy; R4 is H, halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy or C1-C6-haloalkoxy; R5 is halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, C2-C6-alkenyl, C3-C6-alkynyl, C3-C6-cycloalkyl, C3-C6-cycloalkyl-C1-C6-alkyl, C3-C6-cycloalkenyl or C1-C6-alkoxy-C1-C6-alkyl; or R4 and R5 together with the carbon atom to which they are attached form a moiety selected from the group consisting of carbonyl, C3-C6-cycloalkan-1,1-diyl, ipso-C3-C6-cycloalkendiyl, three- to six-membered saturated or partially unsaturated ipso-heterocyclodiyl; including their agriculturally acceptable salts.