PROBLEM TO BE SOLVED: To provide a method for controlling plant diseases. SOLUTION: In this formula, Q represents a group represented by a methoxyacrylic acid derivative, a methoxyiminoacetic acid derivative, a triazolone derivative, a 1,4,2-dioxazine derivative, or the like； X represents an oxygen atom or Represents NH； L represents CH2, an oxygen atom or NCH3； E represents a C6-C10 aryl group or the like； R1 represents a C1-C3 chain hydrocarbon group, cyclopropyl group or the like； R2 represents R1 represents a C1-C3 alkoxy group or a C1-C3 chain hydrocarbon group； n represents 0, 1, 2 or 3. ] The method for controlling plant diseases, which comprises the step of applying an effective amount of the compound represented by the formula, or its N oxide or an agriculturally acceptable salt, to a plant or a cultivation carrier for cultivating the plant. [Selection diagram] None【課題】植物病害の防除方法の提供。【解決手段】式（Ｉ）［式中、Ｑは、メトキシアクリル酸誘導体、メトキシイミノ酢酸誘導体、トリアゾロン誘導体、１，４,２－ジオキサジン誘導体等で示される基を表し；Ｘは、酸素原子又はＮＨを表し；Ｌは、ＣＨ２、酸素原子又はＮＣＨ3を表し；Ｅは、Ｃ６－Ｃ１０アリール基等を表し；Ｒ1は、Ｃ１－Ｃ３鎖式炭化水素基、シクロプロピル基等を表し；Ｒ2は、Ｃ１－Ｃ３鎖式炭化水素基、シクロプロピル基等を表し；Ｒ3は、Ｃ１－Ｃ３アルコキシ基又はＣ１－Ｃ３鎖式炭化水素基を表し；ｎは、０、１、２又は３を表す。］で示される化合物、又はそのＮオキシド若しくは農業上許容可能な塩の有効量を植物、又は植物を栽培する栽培担体に施用する工程を含む植物病害の防除方法。【選択図】なし
