1,2,3 - Thiadiazole - derivatives, means for controlling plant diseases and method for its use

摘要

1,2,3-Thiadiazole derivatives of general formula (I) (wherein R1 is hydrogen, halogen, (C¿1?-C6) alkyl, phenyl or the like and R?2¿ is group (A) or (B), wherein R3 is halogen, cyano or the like; R4 is hydrogen, halogen, cyano or the like; X and Y are the same or different and each represents oxygen or sulfur; n is 0 to 3; R5 is hydrogen, C¿1?-C20 alkyl or the like; R?6 is C¿1-C20 alkyl, C2-C20 alkenyl or the like; and m is 0 to 2); a plant disease controlling agent characterized by containing one or these compounds; and a method for the use thereof.