Tetrahydro-1,3,5-triazine-2,6-diones

1 (3-times amended) Tetrahydro-1,3,5-triazine-2,6-dione compound of the formula ##STR106## wherein R.sup.1 is alkyl of from 1 to 12 carbon atoms, haloalkyl of from 1 to 12 carbon atoms, cycloalkyl of from 5 to 7 ring carbon atoms, carbocyclic aralkyl of up to 12 carbon atoms or carbocyclic aryl of up to 10 carbon atoms, which cycloalkyl, carbocyclic aralkyl or carbocyclic aryl may be substituted with at least one of halogen, alkyl of up to 4 carbon atoms, alkoxy of up to 4 carbon atoms and trifluoromethyl,

• R.sup.2 is alkoxy or alkanoyloxy of from 1 to 4 carbon atoms, cycloalkyl of from 5 to 7 ring carbon atoms, carbocyclic aralkyl of up to 12 carbon atoms or carbocyclic aryl of up to 10 carbon atoms;
• or
• R.sup.2 is --NR.sup.4 R.sup.5 wherein R.sup.4 and R.sup.5 individually represent hydrogen, alkyl of up to 4 carbon atoms or alkanoyl of up to 4 carbon atoms;
• or
• R.sup.2 is --NR.sup.4 R.sup.5 wherein R.sup.4 and R.sup.5 together represent alkylidene, of up to 3 carbon atoms, optionally substituted with at least one of carbocyclic aryl, haloaryl, alkoxyaryl and nitroaryl of up to 10 carbon atoms;
• R.sup.3 is hydrogen, halogen, alkyl of up to 10 carbon atoms, haloalkyl of up to 10 carbon atoms or carbocyclic aryloxy of up to 10 carbon atoms;
• or
• R.sup.3 is --N--R.sup.6 R.sup.7 wherein R.sup.6 and R.sup.7 individually are hydrogen, alkyl of up to 4 carbon atoms, carbocyclic aralkyl of up to 7 carbon atoms, hydroxyl, amino, or methoxy;
• or
• R.sup.3 is alkoxy or alkylthio of up to 4 carbon atoms.