Abstract: Fungicidal compositions comprising at least one organometallic compound of aluminum and/or boron, at least one divalent metal and at least one carboxylic acid group. The compositions are useful in preserving timber.

Abstract: N.sup.3 -(Cycloalkyl)alkyl-2,4-dinitro-6-trifluoromethyl-1,3-phenylenediamine compounds of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of H--, C.sub.1 -C.sub.6 straight and branched chain alkyl, haloalkyl and hydroxyalkyl, C.sub.2 -C.sub.6 straight and branched chain alkenyl, alkynyl and alkoxyalkyl and C.sub. 3 -C.sub.6 cycloalkyl; R.sub.2 is selected from the group consisting of C.sub.3 -C.sub.5 cycloalkyl groups and C.sub.3 -C.sub.5 cycloalkyl groups substituted with C.sub.1 -C.sub.6 straight and branched chain alkyl; and n is 1, 2 or 3. The compounds are useful in herbicidal compositions.