| abstract |
The present invention relates to agents against fish parasites, especially parasitic protozoa and metazoa, which contain substituted 1,2,4-triazinediones of the general formula (I) <IMAGE> in which R<1> is aromatic radicals or heteroaromatic radicals which are bonded via carbon, each of which are optionally substituted, X is O, S, SO, SO2 or <IMAGE> R<2> is one or more, identical or different radicals from the group comprising hydrogen, halogen, nitro, alkyl, alkoxy, halogenoalkyl, halogenoalkoxy R<3> is hydrogen, optionally substituted alkyl, alkenyl, alkynyl, aralkyl.n[EP0353526A2] |