PROBLEM TO BE SOLVED: To provide a novel bactericidal agent, particularly a bactericide for agricultural and horticultural use.SOLUTION: The present invention provides an acylhydrazone derivative represented by formula (I) or salt thereof, or N-oxide thereof, and a bactericide for agricultural and horticultural use comprising the same [W is O or S A is O or S R6 is alkyl or cycloalkyl and R1 is phenyl substituted by (Z)m and the like].SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】新規な殺菌剤、特に農園芸用殺菌剤を提供する。【解決手段】式(I)で表されるアシルヒドラゾン誘導体若しくはその塩又はそれらのN-オキシド、及びそれらを含有する農園芸用殺菌剤。[WはO又はS;AはO又はS;R6、アルキル、シクロアルキル、R1は(Z)mによって置換されたフェニル等]【選択図】なし
