Combating fungi with 1-aryl-5-alkylidene-2,4-dioxo-imidazolidines

Abstract

Fungicidal compositions containing, and methods of combating fungi, using 1-aryl-5-alkylidene-2,4-dioxo-imidazolidines of the formula ##STR1## in which R is aryl optionally substituted by nitro; by halogen; by alkyl, alkoxy, alkylthio, alkylsulfinyl or alkylsulfonyl each with up to 6 carbon atoms; by haloalkyl with up to 5 halogen atoms and 1 or 2 carbon atoms; by cycloalkyl with 5 or 6 carbon atoms; by hydroxyl; by cyano; by thiocyanato; by acetyl; by formyl; by phenyl or phenoxy each optionally carrying halogen or nitro as substituents; by phenylthio; by phenylsulfonyl; by halosulfonyl; by benzyl; by anilino; by monoalkylamino or dialkylamino, each with up to 4 carbon atoms in each alkyl moiety; or by a cyclic amine radical in which the amine nitrogen is a constituent of a 5-membered or 6-membered heterocyclic structure which can in addition contain at least one further hetero-atom selected from the group consisting of nitrogen, oxygen and sulfur ring members; it being possible for an aryl radical to be substituted by the group ##STR2## R' is hydrogen or alkyl with up to 6 carbon atoms, EXHIBIT STRONG FUNGICIDAL PROPERTIES.

Dependencies are inferred from the claim text.