The present invention relates to diaminotriazine compounds 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. Formula (I) wherein A is a fused saturated or unsaturated, 5-, 6-membered carbocycle or a fused saturated or unsaturated, 5-, 6-membered heterocycle; p is 1 or 2, q is 0, 1, 2 or 3; Rb is inter alia halogen, OH, CN, amino, NO2, C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkynyl, C1-C6-alkoxy, C2-C6-alkenyloxy, C2-C6-alkynyloxy, etc.; R1 is inter alia H, OH, S(O)2NH2, CN, C1-C6-alkyI, C2-C6-alkenyl, C2-C6-alkynyl, (C3-C6-cycloalkyl)-C1-C4-alkyl, C1-C6-alkoxy, etc.; R2 is inter alia H, OH, S(O)2NH2, CN, C1-C6-alkyI, C2-C6-alkenyl, C2-C6-alkynyl, (C3-C6-cycloalkyl)-C1-C4-alkyl, C1-C6-alkoxy, etc; X is a radical selected from the group consisting of CR3R4R5 phenyl, which is unsubstituted or carries 1, 2, 3, 4 or 5 radicals RAr; NR3aR3b, OR3c, S(O)kR3d, k being 1, 2 or 3, and including their agriculturally acceptable salts.