TRIAZOLONE DERIVATIVES, USE OF THE SAME AND INTERMEDIATES IN THE PRODUCTION OF THE SAME

摘要

Triazolone derivatives represented by general formula (a), wherein R<1> represents optionally substituted aromatic hydrocarbyl, etc.; R<2> and R<6> represent each hydrogen, etc.; R<3> represents C1-3 alkyl, etc.; R<4> represents C1-3 alkyl, etc.; W represents oxygen or sulfur; and -A- represents -O-, etc.; a plant disease control agent comprising the same as the active ingredient; and intermediates in the production of the same. The compounds exert excellent effects of controlling plant disease damages.