PYRIDYLMETHYL DERIVATIVES OF 2,6-DICHLOROISONICOTINIC ACID, PROCESS FOR PRODUCTION OF THE SAME, AND DISEASE CONTROLLERS FOR AGRICULTURAL AND HORTICULTURAL USE

摘要

Pyridylmethyl derivatives of 2,6-dichloroisonicotinic acid represented by the general formula (I); a process for the production of the same; and disease controllers for agricultural and horticultural use: (I) (Q1) (Q2) (Q3) (wherein A is oxygen or nitrogen which is unsubstituted or substituted with lower alkyl; Q is a pyridine ring group represented by the general formula: (Q1), (Q2) or (Q3); X is lower alkyl, lower haloalkyl, lower alkoxy, lower haloalkoxy, lower alkylthio, cyano, hydroxy, phenoxy, phenyl, or halogeno; and m is an integer of 0 to 4, with the proviso that when m is 2 or above, X's may be the same or different from each other). The derivatives represented by the general formula (I) exhibit excellent control effects against plant diseases.