Patent ID: 8324259

Claim:
A method of treating turfgrass to reduce the growth of fungus on the turfgrass, comprising the steps of: (a) providing a composition comprising a fungicidally effective amount of a compound of formula 1: and stereoisomers thereof, wherein Y is hydrogen, halo, hydroxy, C 1-4 alkyl, C 1-4 alkoxy, C 1-4 haloalkyl, C 1-4 haloalkoxy, C 1-4 alkylcarbonyl, C 1-4 alkoxycarbonyl, phenoxy, nitro or cyano; R 1 and R 2 , which may be the same or different, are hydrogen, optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted cycloalkylalkyl, optionally substituted aralkyl, optionally substituted aryloxyalkyl, optionally substituted arylthioalkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted alkoxy, optionally substituted aryl, optionally substituted aryloxy, nitro, halo, cyano, —NR 3 R 4 , —C0 2 R 3 , —CONR 3 R 4 , —COR 3 , —S(O) n R 3 wherein n is 0, 1 or 2, (CH 2 ) m PO(OR 3 ) wherein m is 0 or I, or R 1 and R 2 join to form a carbocyclic ring system; and R 3 and R 4 , which are the same or different, are hydrogen, optionally substituted alkyl, optionally substituted aralkyl, optionally substituted alkenyl, optionally substituted alkynyl or optionally substituted aryl, and, a fungicidally effective amount of a compound of formula 2: and stereoisomers thereof, wherein Ar represents phenyl or phenyl substituted with one to two substituents selected from the group consisting of chlorine, fluorine, alkyl of one to four carbon atoms and trifluoromethyl; R 1 represents alkoxy of one to four carbon atoms or —NR 3 R 4 , in which R 3 and R 4 represents hydrogen alkyl of one to four carbon atoms or alkenyl of two to four carbon atoms; R 2 represents hydrogen or alkyl of one to four carbon atoms; and X represents oxygen or sulphur; (b) diluting said composition within a diluent; and (c) applying said diluted composition at least once to said turfgrass.