Agent for the control of plant-pathogenic organisms

A composition suitable for protecting a plant against attack by a plant pathogenic bacterial or fungal organism which comprises a surface active dispersing agent, an inert finely divided solid, and an effective amount from about 2 to 98 percent by weight of an active agent selected from the group consisting of compounds of the formula ##STR22## and the phytologically acceptable acid addition salts thereof, wherein X represents --O--, --S--, ##STR23## each R.sup.1 independently represents hydrogen, halo, lower alkyl of C.sub.1 -C.sub.3, lower alkoxy of C.sub.1 -C.sub.3, or lower alkylthio of C.sub.1 -C.sub.3 ;

• R.sup.2 represents hydrogen, alkyl of C.sub.1 -C.sub.11, cyclopropyl, hydroxy, lower alkoxy of C.sub.1 -C.sub.3, mercapto, lower alkylthio of C.sub.1 -C.sub.3, allylthio, propynylthio, benzylthio, halo, amino, (lower alkyl of C.sub.1 -C.sub.3)amino, di(lower alkyl of C.sub.1 -C.sub.3)amino, carbamoyl, thiocyanato, acetamido, trifluoromethyl, halomethyl, mono- or di(lower alkyl of C.sub.1 -C.sub.3)aminomethyl, or radical of the formula ##STR24## wherein R.sup.3 represents sodium, potassium, or lower alkyl of C.sub.1 -C.sub.3 ;
• subject to the limitations (1) that at least two R.sup.1 's or at least one R.sup.1 and R.sup.2, represent hydrogen;
• and (2) that when both R.sup.2 and the R.sup.1 substituent at the 5-position represent groups other than hydrogen, such groups together do not contain more than six carbon atoms.