A compound for controlling Take-all disease of plants by applying, preferably to the seed prior to planting, a fungicide of formula (I) wherein R2 is ethyl, iso-propyl, propyl or allyl; A is N(CH¿3?)1-nHnR?5 or OR6¿ wherein n is 0 or 1, R5 is (CH¿3?)m(CH3CH2)3-mC, 1-methylcyclopentyl, 1-methylcyclohexyl or 2,3-dimethyl-2-butyl wherein m is 0, 1, 2 or 3 and R?6¿ is independently R5 or 2,3,3-trimethyl-2-butyl; R3 is H or independently R?4; and R4¿ is halo or CH¿3?; with the proviso that when A is N(CH3)1-nHnR?5, if R3¿ is H and R5 is 1-methyl-1-cyclohexyl or (CH¿3?)m(CH2CH3)3-mC, where m is 0 or 3, or if R?3¿ is halo and R5 is (CH¿3?)m(CH3CH2)3-mC, where m is 3, then R?2¿ cannot be ethyl; and with the proviso that when A is OR6 then m is equal to or less than 2, and if R3 is H or halo and R2 is ethyl or isopropyl, then R6 is (CH¿3?)m(CH3CH2)3-mC where m is 1; or an agronomic salt thereof compositions, method of use and processes of preparation therefor.